IPsec Gateway

Overview

This document describes some challenges and issues identified when testing and using vGateway to connect to the Acreto platform.

Routing

Default Route

Once vGateway connects to the Acreto platform, we:

create a direct route to the Acreto platform (“right” server in IPSec nomenclature) via a local gateway, to ensure we can reach the server
create a new default route that goes through vti- device
remove the previous default route to disallow sending any traffic to the Internet if the tunnel is down

This causes several issues:

DHCP can restore the default route when refreshing the lease
If the interface goes down (like network cable disconnect or adapter failure), route in point 1 will disappear, making it impossible to maintain/reconnect ipsec connection (as our default route goes now through vti- device)

Note We are not deleting vti- device/route when the tunnel goes down because this causes a “no route to host” error. It means that any default route records in the routeing table will not be used, because they will have lower priority (higher metric) than vti- default route.

AWS EC2 - Automatic IPsec Configuration

Prerequisites

Acreto Ecosystem
Basic knowledge about AWS VPC.
Basic knowledge about AWS EC2.

AWS - Create VPC

Login to AWS console.
follow the official guide and create a VPC.
1. If your VPC already exists, make sure that there’s at last one subnet.
Open setting for VPC (Networking & Content Delivery section) or use the search option to find VPC settings.
1. Please note the network address of this subnet.

Acreto - Create Gateway

Log in to Acreto Portal.
Create new Gateway - IPSec type - follow this article.
When configuring new Gateway add network(s) - same as VPC subnet in Local networks area.

AWS VPC - Create EC2 and Install Acreto Gateway Software

Create new EC2 with Ubuntu in selected VPC.
Connect with SSH to the new EC2 instance (username: ubuntu)
Copy and paste the command for acreto auto installation script - don’t press ENTER yet.
1. Acreto - Generate IPsec config and copy the link
2. Paste the link in the SSH terminal and press ENTER

AWS VPC - Update VPC Subnet Route Table

Open the VPC panel on AWS, and from the left menu choose Route Tables.
Modify the VPC Route Table - read more
1. Info: A routing table that’s associated with a subnet for the VPC.
2. Add 100.64.0.0/16 on the Route Table
  1. Destination 100.64.0.0/16.
  2. Target Instance - “Acreto Gateway” (eni- of that instance).
If there are more AZ (Availability Zones), update the route table for the other subnets as well.
Update AWS Security Group to allow all inbound and outbound traffic for Acreto subnet
1. 100.64.0.0/16
2. Allow all traffic from/to this subnet, because we control the traffic on Acreto Security Policies

AWS EC2 - Disable source/destination checks for EC2 instance

To disable source/destination checking using the console
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
In the navigation pane, choose Instances.
Select the NAT instance, choose Actions, Networking, Change Source/destination check.
Verify that source/destination checking is stopped. Otherwise, choose Stop.
Choose Save.
Read more on AWS

Acreto - Configure Security Policy

Create a Security Policy to allow traffic from selected Gateway and/or Profile Group(s) to the VPC subnet

AWS Site-to-Site VPN using Virtual Private Gateway

Before You Start

Overview

This article describes how to configure a Route-Based Site-to-Site IPsec VPN between an Acreto Ecosystem and the Amazon Web Services (AWS) Virtual Private Cloud (VPC) using static routing:

Network Diagram
Concepts and Glossary
Prerequisities
The Purpose of Site-to-Site IPsec VPN
Configuring Acreto Gateway object for IPsec AWS Site-to-Site VPN tunnel
Setting up the Amazon AWS Virtual Private Cloud and VPN Connection
References and Related Articles

Network Diagram

Concepts and Glossary

IPsec VPN tunnel: An encrypted link where network traffic can pass between Acreto Ecosystem and AWS VPS.
Customer gateway: An AWS resource that provides information to AWS about the Acreto IPsec Gateway object.
Virtual private gateway: The VPN concentrator on the Amazon side of the Site-to-Site VPN connection.

Prerequisites

In order to setup IPsec Site-to-Site VPN tunnel between Acreto Ecosystem and AWS VPS you need:

Access to Active Acreto Ecosystem
Access to AWS Management Console

The Purpose of Site-to-Site IPsec VPN

Acreto as a Cloud Provider allows to connect and integrate multiple networks, both physical and virtual. All connections require stable and secure links. Virtual (EC2) Instances running on Amazon VPC can’t communicate securely with your own (remote) network by default. It is possible to connect your network to Acreto Ecosystem and then you can enable access to your remote network from your VPC by creating an AWS Site-to-Site VPN (Site-to-Site VPN) connection, and configuring routing to pass traffic through the connection.

Acreto Ecosystem configures the routing automatically and passes the traffic between AWS VPC and your network. Additionally, the traffic is scanned by the Acreto Threat Engine to block suspicious traffic and malware.

Tip

AWS Site-to-Site VPN limitations: IPv6 traffic is not supported for VPN connections on a virtual private gateway. An AWS VPN connection does not support Path MTU Discovery. In addition, take the following into consideration when you use Site-to-Site VPN.

How To: Configure Site-to-Site VPN in AWS

Use the following procedures to manually set up the AWS Site-to-Site VPN connection on Amazon AWS.

You can create a Site-to-Site VPN connection with either a virtual private gateway or a transit gateway as the target gateway.

Step 1: Create VPC

Use existing VPC or create a new VPC using the steps below :

Login to AWS console.
Goto the region where you want to create your VPC.
Search VPC in the Services search tab.
From the VPC Dashboard, click Your VPCs under VIRTUAL PRIVATE CLOUD in the left sidebar and click Create VPC
Create a VPC with the following values:
- IPv4 CIDR Block: 172.16.0.0/22
- IPv6 CIDR Block: No IPv6 CIDR Block
- Tenancy: default
Click Create VPC

Step 2: Create Subnet

Now create a new subnet in the VPC address range. If you want to use an existing subnet, you can skip this step and use the pre-existing subnet in subsequent steps.

From the VPC Dashboard, click Subnets under VIRTUAL PRIVATE CLOUD in the left sidebar and click Create Subnet
Select the new VPC created in the Step 1 or your existing VPC in the VPC ID options.
Create a new Subnet under Subnet settings with the below details :
- Availability Zone: No preference
- IPv4 CIDR block: 172.16.1.0/24
Click Create Subnet button

Step 3: Create Internet Gateway

From the VPC Dashboard, click Internet Gateway under VIRTUAL PRIVATE CLOUD in the left sidebar and click Create Internet Gateway
Give the name for the Internet gateway and click Create internet gateway
Select the Internet gateway and click Actions and Attach to VPC
Assign your VPC
Click Attach internet gateway.

Step 4: Create Route Table

Configure Route table for the above subnet to reach Acreto’s public IP through Internet Gateway.

From the VPC Dashboard, click Route Tables under VIRTUAL PRIVATE CLOUD in the left sidebar and click Create Route Table
Create a Route table with the following values:
- Name: Acreto_ipsec_RT
- VPC: Select the VPC created in Step 1
Click Create Route Table, with parameters as shown in screenshot below:
Select the Route table created above and click Subnet association, with parameters as shown in screenshot below:
Select your Subnet and click Save associations, with parameters as shown in screenshot below:
Select the routes and click Edit routes, with parameters as shown in screenshot below:
Add route for Acreto’s Default Tunnel IP used to form the VPN through the Internet Gateway, with parameters as shown in screenshot below:
Click Save changes.

Step 5: Create Customer Gateway

Create new Customer Gateway with Acreto’s public IP.

From the VPC Dashboard in the left side bar, goto VIRTUAL PRIVATE NETWORK (VPN) » Customer Gateways
Click Create Customer Gateway
Provide the following values :
- Name: Acreto
- Routing: Static
- IP Address: Acreto’s Default Tunnel IP
Click Create Customer Gateway.

Step 6: Create Virtual Private Gateway

Create a Virtual Private gateway that will be used to form the Ipsec tunnel with Acreto.

From the VPC Dashboard in the left sidebar, goto VIRTUAL PRIVATE NETWORK (VPN) » Virtual Private Gateways
Click Create Virtual Private Gateway
Give the name and click Create Virtual Private Gateway
Select the Virtual Private Gateway and click Actions » Attach to VPC
Select your VPC and click Yes, Attach button.
From the VPC Dashboard, click Route Tables under VIRTUAL PRIVATE CLOUD in the left sidebar.
Select the route table created in Step 4
Select the Route Propagation tab and click the button Edit route propagation.
Check Enable
Click the Save button.

Tip

This step ensures that the AWS virtual hosts receive a route for the 100.64.0.0/16 network (Acreto Ecosystem Internal network) after the VPN establishes.

Step 7: Create and Configure VPN Connection

Create a new VPN connection and associate the previously created VGW and CGW.

From the VPC Dashboard in the left sidebar, go to VIRTUAL PRIVATE NETWORK (VPN) » Site-to-Site VPN Connections.
Click Create VPN Connection.
Provide the following values in the tunnel setting:
- Name: Acreto_ipsec
- Target Gateway Type: Virtual Private Gateway
- Virtual Private Gateway: Select the Virtual Private gateway created above
- Customer Gateway: Existing
- Customer Gateway ID: Select the Customer gateway created above
- Routing Options: Static
- Static IP Prefixes: 100.64.0.0/16
Click Create VPN Connection.
Select the VPN created and click the tab Tunnel Details. Copy the Outside IP address of the tunnel to form a VPN with Acreto.

This Outside IP address will be used in the next steps to configure the Acreto gateway on Wedge Ecosystem.

Step 8: Create Acreto Gateway for IPsec

Create Gateway on Ecosystem by following the instruction in the link. Provide the following values:

Type: IPsec
Category: Data Center
Model: AWS site-to-site VPN
Connections from: AWS Tunnel’s Outside IP address
Local network: local_network
Save and Commit the changes.

Step 9: Read the Configuration

Click the gateway created on wedge.
Click the Play button under Configuration Options to generate the strongSwan Config.
Once the Config file is generated, click the Download button to download the configuration on the local computer.
Unzip the downloaded file and copy the psk from the file ipsec.secrets

Step 10: Update AWS VPN tunnel configuration

Goto AWS Site-to-Site VPN connections
Select the VPN and click Actions » Modify VPN Tunnel Option
Select the tunnel used to create the VPN with Acreto.
Update the password copied from the ipsec.secrets file from strongSwan config file downloaded from Wedge
In the same window “Modify VPN Tunnel Options” scroll down and select the following action under tunnel configuration:
- DPD Timeout Action: Restart
- Startup Action: Start
Click Save

How-to: Update Route Table in AWS

Configure Route table to set the default route to VPN tunnel

From the VPC Dashboard, click Route Tables under VIRTUAL PRIVATE CLOUD in the left sidebar
Select the Route table and click Edit routes
Add the following route :
- Destination: 0.0.0.0/0
- Target: Select the Virtual Private Gateway id
Click Save changes.

Verify the connections

Once the tunnel connection is successfully established, the status of the connection will be up.

To verify on AWS, navigate to the VPN created under VIRTUAL PRIVATE NETWORK (VPN) » Site-to-Site VPN Connections .
Verify the following:
- Customer Gateway: Acreto’s Default Tunnel IP
- Status: UP
Do a traceroute or equivalent command from an internal server to public IP like 4.2.2.2. It should show Acreto’s IP in the path.

What is AWS Site-to-Site VPN?

Summary

Acreto IPsec Gateway allows to set up VPN tunnel to connect Acreto Ecosystem with Amazon Web Services (AWS) Virtual Private Cloud (VPC).

Azure Site-to-Site connection using VPN Gateway

Before You Start

Overview

This article describes configuring a Route-Based Site-to-Site IPsec VPN between an Acreto Ecosystem and Azure network.

Network Diagram

Pre-requisite

To set up an IPsec Site-to-Site VPN tunnel between Acreto Ecosystem and Azure, you need:

Access to Active Acreto Ecosystem (Wedge)
Access to Azure Portal

How To: Configure Site-to-Site VPN in Azure

Use the following procedures to set up the Azure Site-to-Site VPN connection manually.

Step 1: Create a virtual network

Use an existing virtual private network or create a new virtual private network using the steps below:

Login to Azure Portal
Click on Create a resource
Click on Networking from the left sidebar.
Click on Virtual Network
Fill in the following fields in the Basics tab.
- Project details
  - Subscription
  - Resource group
- Instance details
  - Name
  - Region
Fill in the following fields in the IP Addresses tab
- Address space
- Subnet Name
- Subnet Address range
Review the configurations on the Review + create tab and click Create

Wait for the deployment to finish and the Virtual Network to be created.

Step 2: Create a VPN gateway

Create the virtual network gateway for your virtual network. Creating a gateway can often take 45 minutes or more, depending on the selected gateway SKU.

Click on Create a resource
Click on Networking from the left sidebar
Click on Virtual network gateway
Fill in the following fields in the Basics tab.
- Project details
  - Subscription
- Instance details
  - Name
  - Region
  - Gateway type: VPN
  - VPN type: Route-based
  - SKU
  - Generation: Generation 1
  - Virtual Network: (select the virtual network you created earlier)
  - Gateway Subnet address range
- Public IP address
  - Public IP address: Create a new ( or use existing)
  - Public IP address name
Review the configurations on the Review + create tab and click Create

Step 3: Create a local network gateway

The next step is to create a local gateway representing your local network.

Click on Create a resource
In the search bar, search for Local Network Gateway
Click on Create.
Fill in the following fields in the Basics tab.
- Project details
  - Subscription
  - Resource group
- Instance details
  - Name
  - Region
  - Endpoint: IP address
  - IP Address: Acreto’s Tunnel IP
  - Address Space(s): 100.64.0.0/16
Review the configurations and click Create

Step 4: Create a VPN connection

This step creates a Site-to-Site VPN connection between your VPN device and the virtual network gateway.

Click on Create a resource
In the search bar, search for Connection
Click on Create.
On the Basics tab, fill in the following fields:
- Connection type (Site-to-site)
- Subscription (select the same subscription as before)
- Resource group (select the same resource group as before)
- Location (select the same location as before)
Click on Next
On the Settings tab, fill in the following fields:
- Virtual network gateway (created in step 2)
- Local network gateway (created in step 3))
- Shared key (create a temporary password)
- Click on Next
Click on Review + Create

Wait for the deployment to finish and the connection created.

Step 5: Download strongswan configuration

Next, download the VPN configurations from Azure to use it to configure the Acreto gateway.

Go to the VPN connection created in step 4.
Click Overview from the left sidebar
Click Download Configuration
Select any Device vendor, Device family, and Firmware version of your choice.
Click the button Download configuration
Open the downloaded file and note the Azure VPN Gateway IP

Step 6: Create Gateway on Wedge with option AWS Site-to-Site IPsec and Azure Tunnel IP

Create Gateway on Ecosystem by following the instruction in the link. Provide the following values:

Goto Objects » Gateways
Add New Gateway
Provide the following information :
- Name: Azure
- Category: Cloud Instance
- Type: IPSec
- Model: AWS site-to-site VPN
- AWS Tunnel Outside IP Address: <Azure VPN gateway IP from Step 5>
- Local Network

Step 7: Read the Configuration

Read the PSK information from the Acreto gateway created in the previous steps.

Click the gateway created on Acreto in Step 5.
Click the Play button under Configuration Options to generate the strongSwan Config.
Once the Config file is generated, click the Download button to download the configuration on the local computer.
Unzip the downloaded file and copy the PSK from the file ipsec.secrets

Step 8: Update the PSK from Wedge in Azure VPN

Update the new PSK from the previous step and update the VPN connection on Azure.

Goto VPN connection created in step 4
From the left sidebar, click Settings » Shared key
Update the Shared key (PSK) from the Step 7
Save

Step 9: Update IPsec Parameter

Goto VPN connection created in step 4.
From the left sidebar, click Settings » Configuration
Update the following
- IPsec / IKE policy - Custom
- IKE Phase 1
  - Encryption - AES256
  - Integrity/PRF - SHA256
  - DH Group - DHGroup14
- IKE Phase 2(IPsec)
  - Encryption - AES256
  - Integrity/PRF - SHA256
  - DH Group - ECP256
- IPsec SA lifetime in seconds - 3600
- DPD timeout in seconds - 30
Save.

Step 10: Check Connection

Goto VPN connection created in step 4.
From the left sidebar, click Settings » Connections
Give a few minutes for changes to be effective.
Once all the configurations are saved, the status of the VPN connection will be shown as Connected.

What is Azure Site-to-Site connection?

Summary

Acreto IPsec Gateway allows to set up VPN tunnel to connect Acreto Ecosystem with Azure VPN Gateway.

Connect to multiple VPCs in AWS using Transit Gateway

Before You Start

Overview

This article describes configuring a Route-Based Site-to-Site IPsec VPN between an Acreto Ecosystem and the Amazon Web Services (AWS) Transit Gateway to access multiple VPCs.

Network Diagram

Concepts and Glossary

IPsec VPN tunnel: An encrypted link where network traffic can pass between Acreto Ecosystem and AWS VPS.
Customer gateway: An AWS resource that provides information to AWS about the Acreto IPsec Gateway object.
Virtual private gateway: The VPN concentrator on the Amazon side of the Site-to-Site VPN connection.

Prerequisites

To setup an IPsec Site-to-Site VPN tunnel between Acreto Ecosystem and AWS VPS, you need:

Access to Active Acreto Ecosystem
Access to AWS Management Console
Pre-configured VPC, subnets, route tables, NACL, and security groups

The Purpose of Site-to-Site IPsec VPN

Acreto, as a Cloud Provider, allows to connect and integrate multiple physical and virtual networks. All connections require stable and secure links. Virtual (EC2) Instances running on Amazon VPC can’t communicate securely with your own (remote) network by default. However, it is possible to connect your network to Acreto Ecosystem. Then, you can enable access to your remote network from your VPC by creating an AWS Site-to-Site VPN (Site-to-Site VPN) connection and configuring routing to pass traffic through the connection.

How To

Configure Site-to-Site VPN in AWS

Use the following procedures to manually set up the AWS Site-to-Site VPN connection transit gateway on Amazon AWS.

Step 1.1: Create Customer Gateway

Create a new Customer Gateway with Acreto’s public IP.

From the VPC Dashboard in the left sidebar, go to VIRTUAL PRIVATE NETWORK (VPN) » Customer Gateways
Click Create Customer Gateway
Provide the following values :
- Name: Acreto
- Routing: Static
- IP Address: Acreto’s Default Tunnel IP
Click Create Customer Gateway.

Step 1.2: Create Transit Gateway

Create a Transit gateway that will be used to form the IPsec tunnel with Acreto.

From the VPC Dashboard in the left sidebar, go to TRANSIT GATEWAYS » Transit Gateways.
Click Create Transit Gateway.
Give the name and click Create Transit Gateway
Wait for a few minutes to get the state of Transit Gateway to Available.

Step 1.3: Create Transit Gateway attachment

Create a Transit gateway attachment that will attach to the primary VPC.

From the VPC Dashboard in the left sidebar, go to TRANSIT GATEWAYS » Transit Gateways Attachment
Click Create Transit Gateway Attachment
Provide the following values
- Transit Gateway ID - Select the Transit gateway created in the previous step
- Attachment type - VPC
- VPC ID - Select the VPC
- Subnet IDs - Select the subnets that will communicate over the VPN
Click Create Transit Gateway attachment

Step 1.4: Create and Configure VPN Connection

Create a new VPN connection and associate the previously created Virtual Gateway in Step 2 and Customer Gateway in Step 1.

From the VPC Dashboard in the left sidebar, go to VIRTUAL PRIVATE NETWORK (VPN) » Site-to-Site VPN Connections.
Click Create VPN Connection.
Provide the following values in the tunnel setting:
- Name: Acreto_ipsec
- Target Gateway Type: Transit Gateway
- Transit Gateway: Select the Transit gateway created Step 6
- Customer Gateway: Existing
- Customer Gateway ID: Select the Customer gateway created in Step 5
- Routing Options: Static
- Static IP Prefixes: 100.64.0.0/16
Click Create VPN Connection.
Select the VPN created and click the tab Tunnel Details. Copy the Outside IP address of the tunnel to form a VPN with Acreto.

This Outside IP address will be used in the next steps to configure the Acreto gateway on Wedge Ecosystem.

Step 1.5: Create Acreto Gateway for IPsec

Create Gateway on Ecosystem by following the instructions in the link. Provide the following values:

Type: IPsec
Category: Data Center
Model: AWS site-to-site VPN
Connections from: AWS Tunnel’s Outside IP address
Local network: local_network
Save and Commit the changes.

Step 1.6: Read the Configuration

Click the gateway created on the Wedge.
Click the Play button under Configuration Options to generate the strongSwan Config.
Once the Config file is generated, click the Download button to download the configuration on the local computer.
Unzip the downloaded file and copy the PSK from the file ipsec.secrets

Step 1.7: Update AWS VPN tunnel configuration

Goto AWS Site-to-Site VPN connections
Select the VPN and click Actions » Modify VPN Tunnel Option
Select the tunnel used to create the VPN with Acreto.
Update the password copied from the ipsec.secrets file from strongSwan config file downloaded from Wedge
In the same window “Modify VPN Tunnel Options” scroll down and select the following action under tunnel configuration:
- DPD Timeout Action: Restart
- Startup Action: Start
Click Save

Step 1.8: Update the Transit Gateway Route Table

Configure the Route table to set the default route to the VPN tunnel.

From the VPC Dashboard, click Transit Gateway Route Table under TRANSIT GATEWAYS in the left sidebar
Select the Transit gateway Route table entry.
Select tab Routes and click Create Static Route
Click Create Static Route

Step 1.9: Update Route the Table for the Subnet

From the VPC Dashboard, click Route Tables under VIRTUAL PRIVATE CLOUD in the left sidebar
Select the Route table and click Edit routes. Add the following values :
- CIDR - 100.64.0.0/16
- Attachment - Select the Transit VPN attachment id
Click Save changes.

Attach Secondary VPC in the same account to the Transit Gateway

Step 2.1: Create Transit Gateway attachment for Secondary VPC

to TRANSIT GATEWAYS » Transit Gateways Attachment

Click Create Transit Gateway Attachment
Provide the following values
- Transit Gateway ID - Select the Transit gateway created in step 6
- Attachment type - VPC
- VPC ID - Select the new VPC
- Subnet IDs - Select the subnets that will communicate over the VPN
.
Click Create Transit Gateway attachment

Step 2.2: Verify the routes from the new VPC Transit Gateway attachment is available on the Transit Gateway Route table.

Configure Routes from the new VPC transit gateway attachment appears in the Transit Gateway Route table.

From the VPC Dashboard, click Transit Gateway Route Table under TRANSIT GATEWAYS in the left sidebar
Select the Transit gateway Route table entry.
Select tab Routes
Check the Static route from the new VPC Transit Gateway attachment is available

Step 2.3: Update the routes for the Subnet in Secondary VPC

Follow Step 1.9 to add the route for Acreto subnet 100.64.0.0/16 through the transit gateway.

Verify the connections

Once the tunnel connection is successfully established, the status of the connection will be up.

To verify on AWS, navigate to the VPN created under VIRTUAL PRIVATE NETWORK (VPN) » Site-to-Site VPN Connections. Verify the following:
- Customer Gateway: Acreto’s Default Tunnel IP
- Status: UP
Connect a Remote user with the Acreto Connect Client and access the resources in the VPC connected using Transit Gateway.

Summary

Acreto Gateway allows setting up an IPsec VPN tunnel with AWS Transit Gateway, which can be used to access resources in multiple VPCs.

Fortinet FortiGate Dual VPN setup

Before You Start

Overview

This article illustrates a Dual VPN setup and explains how to connect the secondary tunnel from your environment to the second Ecosystem which can act as a backup in case of failure of the Primary ISP or Ecosystem. With this setup, when the first tunnel is down, the traffic will automatically start going through the second tunnel to the backup Ecosystem.

Prerequisites

FortiGate installation
Ecosystem set up with proper security policies

How-To

Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

To simplify testing, add the IP addresses of all interfaces connected to your gateway as Local Networks (you can use /32 prefix for public interface). This will allow you to test connectivity from the gateway through Acreto by using Ping, Traceroute, or similar tools.

Task 1: Read IPsec Gateway Values Required for FortiGate Configuration

To proceed with the FortiGate configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Task 2. Configure Primary Tunnel on FortiGate with Acreto Primary EcoSystem

In FortiGate, go to VPN > IPsec Tunnels. From Create New drop-down menu, select IPsec Tunnel
In the next window, give the primary tunnel name and click on Custom and click on Next.
Configure the following VPN settings:
1. IP Version: IPv4
2. Remote Gateway: Static IP Address
3. IP Address: Primary EcoSystem Gateway
4. Interface: Select WAN Interface
5. Mode Config: Enable
6. DPD Retry interval: 30
Expand Advance Option and configure as below:
1. Add Route: Disabled
2. Authentication Method: Pre-shared Key
3. Pre-shared Key: enter the pre-shared key
4. IKE Version: 2
In Phase1 Proposal. Delete all proposals except two as below:
1. Encryption: AES 128 Authentication: SHA256
2. Encryption: AES 128 Authentication: SHA512
3. DH Group: 15 , 14, 2
4. Key Lifetime: 10800
5. Local ID: enter the peer id
In Phase2 setting, please enter below:
1. Encryption: AES 128 Authentication: SHA256
2. Encryption: AES 128 Authentication: SHA512
3. PFS: Enable
4. DH Group: 15 , 14, 2
5. Auto Keep Alive: Enable
Click OK to save the VPN setting.

Task 3. Configure Secondary Tunnel on FortiGate with Acreto Secondary EcoSystem

Repeat the above steps for the creation of a secondary tunnel. We will use Acreto-ECO-2 as the name of a secondary tunnel in this article.

Task 4. Configure IPs on Tunnel Interfaces

This step is required for policy routing to work. Any dummy/unused IPs can be used for interfaces.

Go to Network > Interfaces. Select Acreto-ECO-1 Tunnel interface and click on Edit
Configure IP as below:
1. IP: 169.254.254.1
2. Remote IP: 169.254.254.2/32
Click on Save
Repeat the step to configure IP on the secondary tunnel interface.
Go to Network > Interfaces. Select Acreto-ECO-2 Tunnel interface and click on Edit.
Configure IP as below:
1. IP: 169.254.254.3
2. Remote IP: 169.254.254.4/32
Click on Save.

Task 5. Configure Routing for VPN Traffic

Go to Network > Static Route. Click on Create New.
In the next window, configure the static route as below:
1. Destination: 0.0.0.0/0
2. Interface: Acreto-ECO-1 (Acreato-primary-tunnel)
3. Administrative Distance: 30
Click on Save
Repeat the step to configure a static route for the secondary tunnel.
Go to Network > Static Route. Click on Create New.
In the next window, configure the static route as below:
1. Destination: 0.0.0.0/0
2. Interface: Acreto-ECO-2 (Acreato-secondary-tunnel)
3. Administrative Distance: 30
Click on Save

Task 6. Configure Policy Route on FortiGate for Traffic from LAN to Acreto.

To configure the policy route, Go to Network > Policy Route. Click on Create New.
In the next window, configure policy route setting as below:
1. Incoming Interface: Select LAN interface
2. Source - IP/Netmask: 192.168.253.0/24 (LAN Network)
3. Destination - IP/Netmask: 0.0.0.0/0
4. Outgoing Interface: Acreto-ECO-1 (Primary Tunnel)
5. Gateway Address: 169.254.254.2 (Remote IP for primary tunnel interface)
Click on save.
Repeat the step to configure the policy route for the secondary tunnel.
Go to Network > Policy Route. Click on Create New.
In the next window, configure policy route setting as below:
1. Incoming Interface: Select LAN interface
2. Source - IP/Netmask: 192.168.253.0/24 (LAN Network)
3. Destination - IP/Netmask: 0.0.0.0/0
4. Outgoing Interface: Acreto-ECO-2 (secondary Tunnel)
5. Gateway Address: 169.254.254.4 (Remote IP for secondary tunnel interface)
Click on Save.

Task 7. Configure Firewall Policies to Allow the Traffic.

Go to Policy & Objects > Firewall Policy. Click on Create New.
In the next window, configure the policy setting as below for primary VPN.
1. Name: Give a name to the primary policy
2. Incoming Interface: LAN
3. Outgoing Interface: Acreto-ECO-1 (Primary Tunnel Interface)
4. Source: LAN Address
5. Destination: all
6. Schedule: Always
7. Service: All
8. Action: Accept
9. NAT: Disable
10. Protocol Option: default
11. SSL Inspection: no-inspection
12. Logging: As needed
Click on Save.
Repeat the step to create a firewall policy to allow traffic on secondary VPN.
Go to Policy & Objects > Firewall Policy. Click on Create New.
1. Name: Give a name to the secondary policy
2. Incoming Interface: LAN
3. Outgoing Interface: Acreto-ECO-2 (Secondary Tunnel Interface)
4. Source: LAN Address
5. Destination: all
6. Schedule: Always
7. Service: All
8. Action: Accept
9. NAT: Disable
10. Protocol Option: default
11. SSL Inspection: no-inspection
12. Logging: As needed
Click on Save.

Task 8. Check the status of the VPN.

Go to Dashboard > Network > IPsec.
If the tunnel is showing down. Select the tunnel and click on Bring UP
Primary and secondary VPN selection is handled by Policy Route.

Traffic will be matched with the policy on top if both tunnels are up.

Summary

After this setup, there are two tunnels created from FortiGate to Acreto Primary and Secondary Ecosystem through Primary and Secondary tunnel respectively. If the primary tunnel goes down, all traffic will start going from the backup tunnel, which in this case is the Secondary tunnel.

Fortinet FortiGate IPsec Configuration

Prerequisites

FortiGate installation
Ecosystem set up with proper security policies

Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

How-To

Step 1: Read IPsec Gateway Values Required for FortiGate Configuration

To proceed with the FortiGate configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Step 2: Configure FortiGate - VPN Creation Wizard

Use VPN Wizard to create all basic configurations.

Log in to the FortiGate Dashboard.
In the navigation panel, select VPN > IPsec Wizard and view VPN Creation Wizard
Complete the first step of VPN Wizard, VPN Setup, by inserting these values:
1. Name: AcretoGate (or your own readable name)
2. Template Type: Site to Site
3. Remote Device Type: Cisco
4. NAT Configuration: No NAT between sites
When the form is ready, click Next.
Complete the second step of the VPN wizard, Authentication.
1. Remote Device: IP address
2. IP Address: Input the IP address of your Acreto Gateway created in Wedge.
3. Outgoing Interface: Select the existing interface that will be used for this connection.
4. Authentication Method: Pre-shared Key
5. Pre-shared Key: Enter the Pre-shared Key common for Acreto and FortiGate (available on Acreto Wedge in the Gate configuration panel).
When the form is ready, click Next.
Complete the last step of the VPN wizard, Policy & Routing.
1. Local Interface: Select the local interface that will use this connection.
2. Local Subnets: Define local subnets for this connection.
3. Remote Subnets: Define remote (Acreto site) subnets for this connection (0.0.0.0/0 - for all networks).
4. Internet Access: None
Click on Save.
From the side menu, choose VPN > IPsec Tunnels to confirm that the newly created VPN is displayed on the list in the Site to Site section.

Step 3: Configure FortiGate - Convert VPN to Custom Tunnel

From the side menu, choose VPN > IPsec Tunnels. You should see the Acreto Gate tunnel created in the previous step.
Double-Click on the tunnel name to open editing options.
On the Edit VPN tunnel screen, click Convert To Custom Tunnel- this action will convert your VPN to a custom tunnel, allowing you to configure additional settings.
After you click on Convert To Custom Tunnel, a few additional options will be displayed on the screen.
Edit Network by clicking on Edit and set the Mode Config to check, as shown on the screen below (IP address and Interface will be different).
Edit Authentication by clicking on Edit and set Version to 2, as shown on the screen below.
Edit Phase 1 Proposal by clicking on Edit and set Version to 2, as shown on the screen below.
1. Encryption: AES256
2. Authentication: SHA512
3. Diffie-Hellman Group: 16
4. Key Lifetime: 3600
Edit Phase 2 Selectors by clicking on Edit > Advanced, as shown on the screen below:
1. Encryption: AES256
2. Authentication: SHA512
3. Enable Replay Detection: check
4. Enable Perfect Forward Secrecy (PFS): check
5. Diffie-Hellman Group: 16
6. Autokey Keep Alive: check
7. Key Lifetime: Seconds
8. Seconds: 3600
When all edits are complete, click OK at the bottom of the screen to convert the tunnel. From now on, the IPsec tunnels panel will show as Custom.

Step 4: Configure FortiGate - Assign IP to the tunnel interface

From the side menu, choose Network > Interfaces. Find the tunnel interface name AcretoGate under WAN interface.
Edit the interface and assign local and remote IP. You can choose any IP, it will not affect the traffic.
1. IP: <any /32 IP>
2. Netmask: 255.255.255.255
3. Remote IP/Netmask: <any /32 IP>

Step 5: Configure FortiGate - Routing Changes

From the side menu, choose Network > Static Routes. Find the static route created by the wizard. Should be with the name <Tunnel_name>_remote.
Edit the static route and change the Administrative Distance to 50.
Click OK to save the route.
From the side menu choose Network > Policy Routes and click on Create New
Configure the new Policy Route, as shown on the screen below.
1. Incoming Interface: <select your local interface>
2. Source Address-Ip/Netmask : <enter local subnet >
3. Destination Address-Ip/Netmask : 0.0.0.0/0
4. Action : Forward Traffic
5. Outgoing Interface : AcretoGate OR <choose your tunnel interface>
6. Gateway Address : <enter Remote IP configured in Step 4.2.3>
Click OK to Save

Step 6: Configure FortiGate - Bring the Tunnel Up

From the side menu, choose Dashboard > Network > IPsec
Select the Tunnel and click on Bring Up.

Step 7: Configure FortiGate - Verify

When the configuration is complete, all network traffic on the selected interface and the selected subnet(s) is redirected through Acreto.

Fortinet FortiGate IPsec Configuration through CLI

Before you start

Overview

This article will show you how to use CLI to connect the FortiGate managed network to the Acreto Ecosystem.

Prerequisites

FortiGate installation
Ecosystem set up with proper security policies

How-To

Create Gateway for IPsec

This step is optional, skip it if you already own the Gateway.

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

Step 1: Read IPsec Gateway Values Required for Fortigate Configuration

To proceed with the Fortigate configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Step 2: Configure Fortigate - Create VPN (Phase1 and Phase2)

Use the following commands to create a VPN through CLI.

Configure IPsec VPN Phase-1

config vpn ipsec phase1-interface
edit AcretoGate
 set interface <wan_interface>   
 set peertype any
 set net-device disable
 set mode-cfg enable
 set proposal aes128-sha256 aes256-sha512
 set ike-version 2
 set keylife 10800
 set remote-gw acreto-peer-ip       (Copy from Wedge Dashboard)
 set psksecret psk                  (Copy from Wedge Dashboard)
 set dhgrp 16
 set localid local-id              (Copy from Wedge Dashboard)
 next
end

Configure IPsec VPN Phase-2

config vpn ipsec phase2-interface
 edit AcretoGate
  set phase1name AcretoGate
  set proposal aes256-sha512 aes256gcm
  set dhgrp 16
  set keepalive enable
  set keylifeseconds 3600
 next
end

Step 3: Configure Fortigate - Create Address and Address group

Create addresses for all local addresses/subnets

config firewall address

edit AcretoGate_local_1
  set allow-routing enable
  set subnet 192.168.1.0 255.255.255.0
  next

edit AcretoGate_local_2             
  set allow-routing enable
  set subnet 192.168.2.0 255.255.255.0
  next
end

Create an address group to add all the addresses created in the previous step

config firewall addrgrp

edit AcretoGate_local_grp
 set member AcretoGate_local_1 AcretoGate_local_2
 next
end

Step 4: Configure Fortigate - Create Firewall Policy for Traffic

Outbound Policy for traffic originating from Local lan interface to internet through Acreto VPN

config firewall policy
edit 0
  set name Outbound_toAcreto 
  set srcintf lan_interface_ip 
  set dstintf AcretoGate
  set srcaddr AcretoGate_local_grp
  set dstaddr all
  set action accept
  set schedule always
  set service ALL
  next
end

Inbound Policy for traffic coming from Acreto VPN to Local lan

config firewall policy
edit 0
  set name Inbound_fromAcreto
  set srcintf AcretoGate
  set dstintf  lan_interface_ip
  set srcaddr all
  set dstaddr AcretoGate_local_grp
  set action accept
  set schedule always
  set service ALL
  next
end

Step 5: Configure Fortigate - Routing Changes

Scenario 1: When traffic from all local subnet/interfaces need to pass through the tunnel

Add Static Route

config router static
edit 0
 set dst Acreto_PeerIP
 set device wan_interface
 Set gateway ISP_Gateway       
 next
edit 0
 set dst 0.0.0.0 0.0.0.0
 set device AcretoGate
 set distance 4
 next
end

Scenario 2: When traffic from a specific subnet/interface needs to pass through the tunnel.

Add IP at the tunnel interface

config system interface
edit "AcretoGate"
 set ip 2.2.2.2 255.255.255.255
 set remote-ip 2.2.2.3 255.255.255.255
 next
end

Add Static Route to direct the traffic through the tunnel with a higher administrative distance

config router static
edit 0
 set distance 254
 set device AcretoGate
 set dst 0.0.0.0 0.0.0.0
 next
end

Add Policy Route to direct the specific traffic through the tunnel

config router policy
edit 0
 set input-device lan_interface 
 set srcaddr AcretoGate_local_grp
 set dstaddr all
 set output-device AcretoGate
 Set gateway 2.2.2.3
 next
end

Step 6: Configure Fortigate - Bring the Tunnel Up

Run the following command to bring the tunnel up bash diagnose vpn tunnel up AcretoGate

diagnose vpn tunnel up AcretoGate

Step 7: Configure Fortigate - Verify

Check the status of tunnel Phase-1

diagnose vpn ike gateway list name AcretoGate

Check status of Phase-2

diagnose vpn tunnel list name AcretoGate

Summary

Once the VPN connection is successfully established, all the internet traffic will be routed through Acreto.

Linux - Automatic IPsec Configuration

Prerequisites

Ubuntu 18.04 or newer installed on your device
Ecosystem set up with proper security policies

Create Gateway for IPsec

If you didn’t do it yet, you need to create a new Gateway device on the Acreto platform.

Login to the Acreto platform at wedge.acreto.net
Select your ecosystem and go to Objects using the left menu.
Click Add new Object and select Gateway.
Fill at least:
1. Name: the name of the IPSec connection needs to be compatible with Strongswan connection name requirements (basically, only letters and numbers)
2. Category: IoT
3. Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted)
4. Local Networks: - your local network addresses that should be routed through this gateway
  
  Note: To simplify testing, add IP addresses of all interfaces connected to your gateway as Local Networks (you can use /32 prefix for public interface). This will allow testing connectivity from the gateway through Acreto using ping, traceroute, and similar tools.
Save the created Gateway by pressing Add.
Add a security policy that will allow communication from the Gateway device to the Internet.
Commit pending changes (top of the screen) Note: to successfully test your connectivity, you also need to create a security policy that will allow traffic going through your device.

Generate Strongswan config files

Log in to the Acreto platform at wedge.acreto.net
Select your ecosystem and go to Objects using the left menu
Open the gateway object which you want to use by clicking on its “Info” button.
Generate the IPsec strongSwan config using Configuration Options > Bare Metal, OS and Software

Then Click on [Play Button]
Copy the link to the IPsec strongSwan config file

Installation using acreto-ipsec.sh script

Execute the following commands on your Linux shell

curl -fsSL https://kb.acreto.net/reference-material/downloads/acreto-ipsec.sh | sudo bash -s -- [URL_to_strongswan_config]

where [URL_to_strongswan_config] is the URL copied in previous step.

Example:

curl -fsSL https://kb.acreto.net/reference-material/downloads/acreto-ipsec.sh | sudo bash -s -- https://api-is-rock-solid.acreto.net/v2/gateways/ipsec/config/strongswan?_token=s.WNJJeTxWsIeXMkgeIA96SOe8

IPsec tunnel and routing verification

Ensure that traffic goes through Acreto (with traceroute or mtr)

Execute the command:

mtr 8.8.8.8

The ouput should indicate that packets go through 100.65.0.x:

Host                     Loss%   Snt   Last   Avg  Best  Wrst StDev
1. 100.65.0.30            0.0%     9  225.1 225.1 224.6 225.8   0.3
2. 100.65.0.1             0.0%     8  225.9 227.5 225.7 237.1   3.9
3. ???
4. nyk-b2-link.telia.net  0.0%     8  226.0 226.9 226.0 228.3   0.7
5. 72.14.218.254          0.0%     8  227.1 227.8 226.4 230.4   1.2
6. 108.170.248.97         0.0%     8  227.1 227.2 226.8 227.9   0.4
7. 108.170.227.211        0.0%     8  226.5 226.9 226.0 227.7   0.6
8. dns.google             0.0%     8  226.7 227.6 226.7 229.2   0.8

IPsec Operational Commands

Restart IPsec service with the following command: ipsec restart
Wait approximately 10 seconds, and check the status of IPsec: ipsec statusall
If the connection did not start, try to take it up manually:
```
CONN=`grep '^conn .*' /etc/ipsec.d/*.conf|cut -d' ' -f2`; echo $CONN
ipsec up $CONN
```
It should display information useful for debugging purposes.

Ensure everything works fine with:

ipsec statusall
ip address show
ip route show

Check if you have Internet access

IPsec Watchdog

In case you Internet connection if very unstable or your ISP changes your public IP, then you may consider running an IPsec watchdog that verifies every minute if the tunnel is passing the traffic to Acreto Ecosystem.

Please download the script and follow the steps from the comments section at the beginning of this script.

Click on the button and save the script in your home directory:

Get ipsec-watchdog.sh

or open the terminal and download the script directly to your vGateway using the command:

cd /etc/ipsec.d/
wget https://kb.acreto.net/reference-material/downloads/ipsec-watchdog.sh

Linux - Manual IPsec Configuration

Prerequisites

Ubuntu 18.04 or newer installed on your device
Ecosystem set up with proper security policies

Create Gateway for IPsec

If you didn’t do it yet, you need to create a new Gateway device on the Acreto platform.

Log in to the Acreto platform at wedge.acreto.net
Select your ecosystem and go to Objects using the left menu.
Click Add new Object and select Gateway.
Fill at least:
1. Name: - the name of IPSec connection, needs to be compatible with Strongswan connection name requirements (basically, only letters and numbers)
2. Category: IoT
3. Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted)
4. Local Networks: - your local network addresses that should be routed through this gateway
  
  Note: To simplify testing, add IP addresses of all interfaces connected to your gateway as Local Networks (you can use /32 prefix for public interface). This will allow testing connectivity from the gateway through Acreto using ping, traceroute, and similar tools.
Save the created Gateway by pressing Add.
Add security policy that will allow communication from the Gateway device to the Internet.
Commit pending changes (top of the screen)

Note: to successfully test your connectivity, you also need to create a security policy that will allow traffic going through your device.

Generate Strongswan config files

Log in to the Acreto platform at wedge.acreto.net
Select your ecosystem and go to Objects using the left menu
Open the gateway object which you want to use by clicking on its “Info” button.
Download Strongswan configuration using Configuration Options > Software Clients with Config
Download Strongswan configuration to your device.

Install dependencies on the device

Log in to your device.
Set up time/date server, to do that use the following command:
```
sudo timedatectl set-ntp on
ntpdate -s ntp.ubuntu.com
```
Install required packages:

sudo apt-get update
sudo apt-get install -y --no-install-recommends \
    apt-utils \
    ifupdown2 \
    inetutils-ping \
    strongswan \
    kmod \
    openssl \
    libstrongswan-standard-plugins

Apply configuration files

Unzip downloaded config file and copy respective files to their location:

unzip -x 10b6c4d8-0e9a-f5c7-c4c9-7edd6a6493ed.zip
sudo cp -r etc/*  /etc

Ensure the files are in proper location
1. /etc/ipsec.d/[connection uuid].conf
2. /etc/ipsec.d/leftifupdown.sh
3. /etc/ipsec.secrets

Enable gateway mode (optional)

To work in gateway mode, you need to configure IPsec to use VTI devices.

Modify /etc/strongswan.d/charon.conf - leave all on defaults except for the following:

install_routes = no
install_virtual_ip = no
ignore_routing_tables = 220

Modify connection file /etc/ipsec.d/*.conf to enable VTI support - uncomment mark and leftupdown options:

# uncomment this line for policy routing configuration
mark=105

# uncomment this line for policy routing configuration
leftupdown=/etc/ipsec-leftupdown.sh

Determine connection name as defined in ipsec configuration:

CONN=`grep '^conn .*' /etc/ipsec.d/*.conf|cut -d' ' -f2`; echo $CONN

Create a routing file that will contain (remote) networks which should be routed through the Acreto platform - by default, it would be a default gateway:

cat > /etc/ipsec.d/$CONN.route << EOF
0.0.0.0/0
EOF

Enable IP forwarding

echo net.ipv4.ip_forward=1 > /etc/sysctl.d/10_ac_ip_forward.conf
systemctl restart systemd-sysctl

Configure connection autostart

sed -i''  -e s/auto=route/auto=start/ /etc/ipsec.d/*.conf

Start IPSec

Restart ipsec service with following command:
```
ipsec restart
```
Wait approximately 10 seconds, and check status of ipsec:
```
ipsec statusall
```
If the connection did not start, try to take it up manually:
```
CONN=`grep '^conn .*' /etc/ipsec.d/*.conf|cut -d' ' -f2`; echo $CONN
ipsec up $CONN
```
It should display information useful for debugging purposes.

Ensure everything works fine with:

ipsec statusall
ip address show
ip route show
Check if you have Internet access enabled.

Check if you have Internet access enabled.

Validation

Ensure that traffic goes through our platform (with traceroute, mtr,). Verify with the command below

Tunnel verification command

mtr 8.8.8.8

Expected output after successful tunnel creation

Host                     Loss%   Snt   Last   Avg  Best  Wrst StDev
1. 100.65.0.30            0.0%     9  225.1 225.1 224.6 225.8   0.3
2. 100.65.0.1             0.0%     8  225.9 227.5 225.7 237.1   3.9
3. ???
4. nyk-b2-link.telia.net  0.0%     8  226.0 226.9 226.0 228.3   0.7
5. 72.14.218.254          0.0%     8  227.1 227.8 226.4 230.4   1.2
6. 108.170.248.97         0.0%     8  227.1 227.2 226.8 227.9   0.4
7. 108.170.227.211        0.0%     8  226.5 226.9 226.0 227.7   0.6
8. dns.google             0.0%     8  226.7 227.6 226.7 229.2   0.8

Palo Alto Networks IPsec Configuration

This section describes how to configure two IPSec VPN tunnels on a PA-200 firewall running version 9.1.x. Refer to Palo Alto Networks documentation for additional information about the web interface.

IPSec Connectivity Guide for Palo Alto Networks Firewall

The ethernet1/2 interface is connected to the internal corporate network. This interface will act as a gateway to the internal corporate network. The ethernet1/1 interface is the external interface. The internal network configuration will be in a trust security zone, and the external network interface configuration will be in an untrust security zone. Also, ensure that both interfaces use the same Virtual Router service.

To configure the IPSec VPN tunnels on PA-200, complete the following tasks:

Task 1: Create a New Virtual Router

For this task, you will create a new Virtual Router. To configure the new Virtual Router:

In the Palo Alto Networks web interface, go to Network → Virtual Routers.
Click Add to add a new Virtual Router.
Enter the Virtual Router name, in this case vrouter.
Click OK to save the vRouter configurations.
Show image

Task 2: Create New Zones

It is recommended to use separate zones to setup IPsec tunnels with PAN.

To configure trust and untrust zones, execute the following commands:

In the Palo Alto Networks web interface, go to Network → Zones.
Click Add to create a new zone.
Enter the trust zone name, in this case trust. Choose zone type Layer3.
Show image
Click OK to save the zone.
Click Add to create a new zone.
Enter the untrust zone name, in this case untrust. Choose zone type Layer3.
Show image
Click OK to save the zone.

Task 3: Configuring the External Ethernet Interface

Configure the external network interface on PAN to be an untrust zone.

In the Palo Alto Networks web interface, go to Network -> Interfaces
Navigate to the Ethernet tab and click on Ethernet 1/1
Set the Interface Type to Layer3
Configure the ethernet 1/1, assign it to an untrust zone and connect to vrouter Virtual Router
Show image
Configure the IP address on the external network, in this example 10.1.203.96/24
Show image
Click OK to save the configurations

Task 4: Configuring the Internal Ethernet Interface

Configure the internal network interface on PAN to be a trust zone.

In the Palo Alto Networks web interface, go to Network -> Interfaces.
Navigate to the Ethernet tab and click on Ethernet 1/2.
Set the Interface Type to Layer3.
Configure the ethernet 1/2, assign it to a trust zone and connect to vrouter Virtual Router.
Show image
Configure the IP address on the internal interface, in this case 10.1.201.96/24.
Show image
Click OK to save the configurations.

Task 5: Configuring the Tunnel Interfaces

Configure the tunnel interface on the external interface (ethernet1/1). Ensure the tunnel is configured in the untrust security zone. In this example, the tunnel interface is named tunnel.1 with a source IP address 10.1.203.93.

To configure the primary tunnel interface:

In the Palo Alto Networks web interface, go to Network -> Interfaces.
Click the Tunnel tab.
Click Add to create a new tunnel interface.
In the Tunnel Interface window, complete the following:
Show image
- Interface Name: Enter a name for the tunnel interface, such as tunnel.1.
- Netflow Profile: Choose the appropriate NetFlow profile. In this example, it’s None.
- Comment: Enter additional notes or information (optional).
- Assign Interface To:
  - Virtual Router: Choose vrouter.
  - Security Zone: Choose untrust.
Under the IPv4 tab, assign IP address 10.1.203.93 to the tunnel.1 interface.
Show image
Click OK to save the tunnel interface.
Click *Commit to apply the configurations.

Task 6: Creating the IKE Crypto Profile

Create an IKE crypto profile that specifies the security settings for the IKE phase 1 negotiations.

To create an IKE crypto profile:

In the Palo Alto Networks web interface, go to Network.
Expand Network Profiles.
Select IKE Crypto.
Click Add to create an IKE crypto profile.
In the IKE Crypto Profile window, complete the following:
- Name: Enter a name for the IKE crypto profile. In this case: acreto-ike-crypto.
- DH Group: Click Add and choose group14, group19, group20.
- Encryption: Click Add and choose aes-128-cbc aes-256-cbc.
- Authentication: Click Add and choose sha256, sha384, sha512.
- Lifetime: Set it to 8 hours.
  Show image
Click OK to save configurations.

Task 7: Creating the IKE Gateway

Create IKE gateways using the Acreto Gateway IP address. In this case: 104.193.146.132.

To create the primary IKE gateway:

In the Palo Alto Networks web interface, go to Network.
Expand Network Profiles.
Click IKE Gateways.
Click Add.
In the IKE Gateway window, complete the following:
- Name: Enter a name for the IKE gateway, such as Acreto-IPsec.
- Version: Select IKEv2 only mode.
- Interface: Choose the external interface ethernet 1/1.
- Local IP Address: Choose None.
- Peer IP Type: Choose Static.
- Peer IP Address: Enter the Acreto Gateway address for the primary gateway. In this case, it's 104.193.146.132.
- Pre-shared Key: Enter the pre-shared key you generated in the Acreto web Portal.
- Confirm Pre-shared Key: Reenter the pre-shared key.
- Local Identification: Enter the Peer ID from the Acreto Web Portal.
- Peer Identification: Choose None.
- Show Advanced Phase 1 Options: Select to show the following options.
  - IKE Crypto Profile: Choose the IKE crypto profile you created in the previous step. In this case, it's acreto-ike-crypto.
  - Enable Passive Mode: Deselect.
  - Enable NAT Traversal: Select.
  - Liveness Check: Deselect.
Below are reference snapshots of the IKE gateway configurations.
Show image

Show image
Click OK to save configurations.

Note: To view the Acreto Web Portal information, complete the following steps:

Log in to https://wedge.acreto.net/.
Click on the Ecosystem you want to connect to.
Navigate to Elements → Objects → Gateways.
Navigate to the gateway you want to connect to and click the Information sign on the right.
Show image
A new window will appear. Click on “VPN Parameters” to expand the details:
Show image
From here you can view the Pre-Shared Key, Gateway Address and Peer ID.
These parameters will be used for Task #7.

Task 8: Creating the IPSec Crypto Profile

Create an IPSec crypto profile that specifies the security parameters for the IKE phase 2 negotiations.

To create an IPSec crypto profile:

In the Palo Alto Networks web interface, go to Network.
Expand Network Profiles.
Click IPSec Crypto.
Click Add to create a IPSec crypto profile.
In the IPSec Crypto Profile window, complete the following:
- Name: Enter a name for the IPSec crypto profile, such as acreto-ipsec-crypto.
- IPSec Protocol: Ensure ESP is chosen.
- Encryption: Click Add and choose aes-256-gcm to encrypt the traffic.
- Authentication: Click Add and choose sha256.
- DH Group: Ensure group20 is chosen.
- Lifetime: Set it to 1 Hour.
- Lifesize: Set the lifesize according to your incoming traffic volume (optional).
Reference snapshot of IPsec crypto profile.
Show image
Click OK to save configurations.

Task 9: Creating the IPSec VPN Tunnels

Configure the IPSec VPN Tunnel using the Acreto Gateway Address. In this case, 104.193.146.132

To create the IPSec VPN tunnel:

In the Palo Alto Networks web interface, go to Network -> IPSec Tunnels.
Click Add to create a new IPSec tunnel.
In the IPSec Tunnel window under the General tab, complete the following:
- Name: Enter a name for the tunnel, such as Acreto-IPsec-Tunnel.
- Tunnel Interface: Choose the tunnel interface you created in Configuring the Tunnel Interfaces. In this case, it's tunnel.1.
- Type: Ensure Auto Key is chosen.
- IKE Gateway: Choose the primary IKE gateway you created in Creating the IKE Gateway section. In this case, it's Acreto-IPsec.
- IPSec Crypto Profile: Choose the IPSec crypto profile you created in Creating the IPSec Crypto Profile. In this case, it's acreto-ipsec-crypto.
- Show Advanced Options: Select to show the following options.
  - Enable Replay Protection: Select.
  - Copy TOS Header: Deselect.
In the Proxy IDs tab, click Add and complete the following:
- Proxy ID: Enter a name for the proxy.
- Local: Enter the local IP address 0.0.0.0/0.
- Remote: Enter the remote IP address 0.0.0.0/0.
- Protocol: Ensure Any is chosen.
Click OK to save the proxy ID.
Click OK again to save the IPSec tunnel configurations.
Reference configuration for the IPSec Tunnel is described in the snapshots below:
Show image

Show image
Click Commit to apply configurations on PAN.

Task 10: Defining the Policy-Based Forwarding Rule

Defining two policy-based forwarding rules to route the traffic from the Palo Alto Network appliance into the tunnel.

To define the primary policy-based forwarding rule:

In the Palo Alto Networks web interface, go to Policies -> Policy-Based Forwarding.
Click Add to create a new rule.
In the General tab, complete the following:
- Name: Enter a name for the policy, such as pbf-ipsec-acreto.
- Description: Enter a description (optional).
- Tags: Choose a tag (optional).
- Reference configurations are described in the image below:
  Show image
In the Source tab, choose Type Zone. Under Zone, click Add and choose trust. Reference configurations of the Source tab are below:
Show image
In the Destination/Application/Service tab, complete the following:
- Destination Address: Ensure Any is selected.
- Applications: Ensure Any is selected.
- Service: Ensure Any is selected.
- Reference configurations of this tab are described in the image below:
  Show image
In the Forwarding tab, complete the following:
- Action: Choose Forward.
- Egress Interface: Choose the primary tunnel interface you created in task 5. Configuring the Tunnel Interfaces. In this case, it's tunnel.1.
- Next Hop: Leave this field blank.
- Monitor: Deselect.
- Enforce Symmetric Return: Deselect.
- Schedule: Choose None.
- Reference configurations for this tab are described in the image below:
  Show image
Click OK to save the configurations.
Commit the changes in PAN.

Task 11: IPSec Tunnel Status

Once completing the above step, the IPsec tunnel will be established between PAN and the Acreto IPsec Gateway. To check the status of the tunnel, navigate to Network → IPSec Tunnels and view the tunnel status. A green color status signifies that the tunnel is established correctly.

Task 12: Configure Routing on PAN

To validate the network traffic going from PAN to the Acreto IPsec gateway, routes must be configured in the virtual router in PAN. Execute the following steps to configure the routes:

In the Palo Alto Networks web interface, go to Networks -> Virtual Routers.
Click on the router that was created in the previous task, in this case vrouter.
From the left panel, select Static Routes.
Click Add to add a new route.
Configure the route fields according to the details below:
- Name: test-ipsec-pan.
- Destination: 8.8.8.8/32.
- Interface: tunnel.1.
- Next Hop: None.
- Admin Distance:
- Metric: 10.
- Route Table: Unicast.
- BFD Profile: Disable BFD.
- Path Monitoring: Deselect.
Reference configurations of this route are described in the image below:
Show image
Click OK to save the configurations.
Click Commit to apply the configurations.

Task 13: Verifying the Connectivity

In this section, the connectivity between PAN and Acreto gateway will be verified.

SSH to the PAN device.
Run the following command below:

ping source <tunnel.1 IP address> host 8.8.8.8

The ping should work with a sample output like below:

     PING 8.8.8.8 (8.8.8.8) from 10.1.203.93 : 56(84) bytes of data.
     64 bytes from 8.8.8.8: icmp\_seq=1 ttl=116 time=7.98 ms
     64 bytes from 8.8.8.8: icmp\_seq=2 ttl=116 time=4.76 ms
     64 bytes from 8.8.8.8: icmp\_seq=3 ttl=116 time=4.24 ms
     64 bytes from 8.8.8.8: icmp\_seq=4 ttl=116 time=4.90 ms
     64 bytes from 8.8.8.8: icmp\_seq=5 ttl=116 time=4.99 ms

You should be able to see these traffic logs in the Acreto Reports dashboard. Navigate to the Ecosystem and from the left panel, select Reports. Below is a sample of the reports from the Acreto Web Portal:

Pfsense Ipsec with Acreto

Overview

This article will help you connect and secure your pfSense installation with Acreto Ecosystem.

Prerequisites

pfSense installation.
Ecosystem set up with proper security policies.

Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the exact requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

How-To

Task 1: Read IPsec Gateway Values Required for IPsec Configuration

To proceed with the pfSense configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Task 2: Configure IPsec on pfSense

Log in to your pfSense panel.
Go to VPN > IPsec. Click on Add P1 to configure the Phase 1 settings.
In the following window, configure VPN Phase1 settings as below:
- General Information:
  1. IKE Exchange Version: IKEV2
  2. Internet Protocol: IPv4
  3. Interface: WAN
  4. Remote Gateway: Acreto Peer IP
  5. Description: AcretoVPN
- Phase 1 Proposal (Authentication)
  1. Authentication Method: Mutual PSK
  2. My Identifier: select Distinguished Name and use Peer ID in the value field.
  3. Pre-Shared Key: PSK
- Phase 1 Proposal (Encryption Algorithm)
  1. Encryption Algorithm: AES 128 SHA256 15(3072)
  2. Expiration and Replacement
  3. Lifetime: 10800
- Advanced Options
  1. Dead Peer Detection: Enable
  2. Delay: 30
  3. Max Failures: 5
Click Save to save the configuration.
Click on Show Phase 2 Entries and Click on Add P2.
In the next window, configure the Phase 2 setting as below:
- General Information:
  1. Mode: Tunnel IPv4
  2. Local Network: Select Network and enter local network address 192.168.252.0/24
  3. Remote Network: Select Network and enter 0.0.0.0/0
  4. Description: AcretoVPN_P2
- Phase 2 Proposal (SA/Key Exchange)
  1. Protocol: ESP
  2. Encryption Algorithm: AES 128
  3. Hash Algorithm: SHA256
  4. PFS key group: 15 (3072)
- Expiration and Replacement
  1. Lifetime: 3600 `
Click on Save.
Click on Apply Changes to save the configuration.

Task 3. Configure Policy to allow traffic from LAN to VPN

Go to Firewall > Rules and select LAN
Click on Add button to add a new rule.
In the next window, configure policy as below:
- Edit Firewall Rules
  1. Action: Pass
  2. Interface: LAN
  3. Address Family: IPv4
  4. Protocol: Any
- Source
  1. Source: Select Network and enter local lan address i.e., 192.168.252.0/24
- Destination
  1. Destination: Any
- Click on Save
- Click on Apply Changes to save the configuration.

Task 4. Disable NAT for traffic over VPN

Go to Firewall > NAT.
Select Outbound, and in the Mapping section click on the Add button.
In the next window, configure the rule as below:
- Edit Advanced Outbound NAT Entry
  1. Do not NAT: Enable
  2. Interface: IPsec
  3. Address Family: IPv4
  4. Protocol: Any
  5. Source: Select Network and enter local lan address i.e., 192.168.252.0/24
  6. Destination: Any
Click on Save
Click on Apply Changes to save the NAT rule.
In the same window, select mode Hybrid Outbound NAT rule generation. (Automatic Outbound NAT + rules below) in Outbound NAT Mode.
Click on Apply Changes to save settings.

Task 5. Verify Tunnel Status

Go to Status > IPsec.
The following window will show the status of the VPN as below. Click on Connect VPN if the tunnel is down.

Task 6. Check the connectivity using the LAN interface

Go to Diagnostics » Ping.
In the next windows, check ping as below:
- Hostname: 8.8.8.8
- Source address: LAN
Ping should be successful, and logs on the Wedge dashboard should show the same record.

Task 7. Optional: Configure the local source and destination to bypass from IPsec

Go to VPN > IPsec and click on Advanced Setting.
In IPsec bypass rules, enter the source and destinations of your local traffic, which doesn’t need to go through Acreto VPN.

Summary

Once the VPN connection is successfully established, all the internet traffic will be routed through the Acreto.

Sonicwall 6.5 IPsec Configuration

Overview

In this article, you will learn how to connect your Sonicwall to the Acreto Ecosystem. To make it possible and secure, we will use the IPSec VPN connection.

Prerequisites

Sonicwall 6.5 installation
Ecosystem set up with proper security policies

Create Gateway for IPsec

Create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Type: IPsec
Category: Data Center
Model: AWS site-to-site VPN
Connections from: Public IP
Local network: local_network
Save and Commit the changes

Info

To simplify testing, add the IP addresses of all interfaces connected to your gateway as Local Networks (use /32 prefix for public interface). This allows testing connectivity from the gateway through Acreto by using Ping, Traceroute, or similar tools.

How-To

Task 1: Read IPsec Gateway Values Required for IPsec Configuration

To proceed with the Sonicwall configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All the details may be found within the Gateway details panel - please check the video below for further instructions.

Animation how to get required values from Gateway [▶]

Task 2: Configure IPsec VPN on Sonicwall

To configure the IPsec VPN using tunnel interface, proceed with the following steps:

Goto MANAGE » VPN » Base Settings.
Under the VPN Policies click the ADD button
Under the General tab, enter the following values:
- Security Policy
  - Policy Type: Tunnel Interface
  - Authentication Method: IKE using Preshared Secret
  - Name: Acreto
  - IPsec Primary Gateway Name or Address: <Wedge_Tunnel_IP>
- IKE Authentication
  - Shared Secret:
  - Confirm Shared Secret:
  - Local IKE ID: IPv4 Address: wedge_tunnel_IP
  - Peer IKE ID: IPv4 Address: Local Public IP
Goto Proposals
- IKE (Phase 1) Proposal
  - Exchange: IKEv2 Mode
  - DH Group: Group 2
  - Encryption: AES-256
  - Authentication: SHA256
  - Life Time (seconds): 10800
- IPsec (Phase 2) Proposal
  - Protocol: ESP
  - Encryption: AES-256
  - Authentication: SHA256
  - Enable Perfect Forward Secrecy: Yes
  - DH Group: Group 14
  - Life Time (seconds): 3600
Advanced Settings
- Enable Keep Alive: Enable
Click the OK button.

Task 3: Create a new tunnel interface

Next, we will create the tunnel interface that will be used to route the traffic.

Goto MANAGE » Network » Interfaces
In the middle of the screen, for the field Add Interface, select VPN Tunnel Interface.
Create a new interface with the following values:
- VPN Policy: Acreto
- Name: vdi_Acreto
- IP Address: <any random IP as 2.2.2.2>
- Subnet Mask: 255.255.255.255
Click the OK button.

Task 4: Configure Routing

To allow the traffic from the LAN subnet to route through the tunnel interface, perform the following steps:

Goto MANAGE » Network » Routing
Under the tab Route Policies, click the Add button
Create a new rule with the following values under General:
- Route Policy Settings
- Name: Lan_to_Acreto
- Source: <lan_subnets>
- Destination: Any
- Service: Any
- Interface: <tunnel_interface>
Click the OK button

Task 5: Configure Access Rules

Verify existing or create a new access rule to allow the desired traffic

Goto MANAGE » Rules » Access Rules
Click the Add button
Under General, provide the following values:
- Name: To_Acreto
- Action: Allow
- From: <Lan_interface>
- To: <tunnel_interface>
- Source Port: Any
- Service: Any
- Source: <lan_subnet>
- Destination: Any
Click the OK button

Task 6: Verify the connection

Once the tunnel connection is successfully established, its status will change to UP.

To verify the status on Sonicwall, navigate to goto MANAGE » VPN » Base Settings
- VPN Policies
The status of the VPN policy should be Green.
- Currently Active VPN Tunnels
The active VPN tunnel will be shown in the list.
Execute tracert 1.1.1.1 (or traceroute 1.1.1.1) on internal server check the route to external host 1.1.1.1. It should show Acreto’s IP in the path.

Summary

Once the VPN connection is successfully established, all the internal traffic to the internet will be routed through Acreto.

Sonicwall 7.0 IPsec Configuration

Overview

In this article, you will learn how to connect your Sonicwall to the Acreto Ecosystem. To make it possible and secure, we will use the IPSec VPN connection.

Prerequisites

Sonicwall 7.0 installation
Ecosystem set up with proper security policies

Create Gateway for IPsec

Create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Type: IPsec
Category: Data Center
Model: AWS site-to-site VPN
Connections from: Public IP
Local network: local_network
Save and Commit the changes

Info

How-To

Task 1: Read IPsec Gateway Values Required for IPsec Configuration

To proceed with the Sonicwall configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All the details may be found within the Gateway details panel - please check the video below for further instructions.

Animation how to get required values from Gateway [▶]

Task 2: Configure IPsec VPN on Sonicwall

To configure the IPsec VPN using tunnel interface, proceed with the following steps:

Goto NETWORK » IPsec VPN » Rules and Settings.
Click the ADD button.
Under the General tab, enter the following values:
- Security Policy
  - Policy Type: Tunnel Interface
  - Authentication Method: IKE using Preshared Secret
  - Name: Acreto
  - IPsec Primary Gateway Name or Address: <Wedge_Tunnel_IP>
- IKE Authentication
  - Shared Secret: PSK
  - Confirm Shared Secret: PSK
  - Local IKE ID: IPv4 Address: Wedge_tunnel_IP
  - Peer IKE ID: IPv4 Address: Local Public IP
Goto Proposals
- IKE (Phase 1) Proposal
  - Exchange: IKEv2 Mode
  - DH Group: Group 2
  - Encryption: AES-256
  - Authentication: SHA256
  - Life Time (seconds): 10800
- IPsec (Phase 2) Proposal
  - Protocol: ESP
  - Encryption: AES-256
  - Authentication: SHA256
  - Enable Perfect Forward Secrecy: Yes
  - DH Group: Group 14
  - Life Time (seconds): 3600
Advanced Settings
- Enable Keep Alive: Enable
Click the OK button.

Task 3: Create a new tunnel interface

Next, we will create the tunnel interface that will be used to route the traffic.

Goto NETWORK » System » Interfaces.
Click the Add Interface button and select VPN Tunnel Interface
Create a new interface with the following values:
- VPN Policy: Acreto
- Name: vti_Acreto
- IP Address: <any random IP as 2.2.2.2>
- Subnet Mask: 255.255.255.254
Click the OK button.

Task 4: Configure Routing

To allow the traffic from the LAN subnet to route through the tunnel interface, perform the following steps:

Goto POLICY » Rules and Policies » Route Policy
Create a new rule with the following values under General tab:
- Name: Lan_to_Acreto
- Source: <lan_subnets>
- Destination: Any
- Select Service radio button
- Service: Any

Click Next Hop tab and give the following values :
- Select Standard Route radio button
- Interface: <tunnel_interface>

Click the SAVE button

Task 5: Configure Security Policy

Verify existing or create a new access rule to allow the desired traffic

Goto POLICY » Rules and Policies » Security Policy
Click the Add button
Under General, provide the following values:
- Name: To_Acreto
- Action: Allow
- From: <Lan_interface>
- To: <tunnel_interface>
- Source Port: Any
- Service: Any
- Source: <lan_subnet>
- Destination: Any

Click the OK button

Task 6: Verify the connection

Once the tunnel connection is successfully established, its status will change to UP.

To verify the status on Sonicwall, navigate to goto NETWORK » IPsec VPN » Rules and Settings » Active Tunnels tab.
- The status of the VPN policy should be Green.
- Currently Active VPN Tunnels
The active VPN tunnel will be shown in the list.
Execute tracert 1.1.1.1 (or traceroute 1.1.1.1) on internal server check the route to external host 1.1.1.1. It should show Acreto’s IP in the path.

Summary

Once the VPN connection is successfully established, all the internal traffic to the internet will be routed through Acreto.

Sophos Ipsec with Acreto

Overview

This article will help you connect your Sophos XG with Acreto Ecosystem through the IPsec tunnel.

Prerequisites

Sophos XG installation
Ecosystem set up with proper security policies

Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

How-To

Task 1: Read IPsec Gateway Values Required for IPsec Configuration

To proceed with the Sophos configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Task 2: To configure IPsec VPN on Sophos

Configure Acreto policy

Log in to the Sophos Firewall panel as a user with an administrator role.
From the left side navigation, choose Configure > VPN (1).
Move to the IPsec policies tab (2) and click on the Add button (3) to create a new policy.
Fill the creation form with the following values:
- General Settings
  - Name: Acreto_ipsec
  - Key exchange: ikev2
- Phase1
  - Key life: 10800
  - DH group (key group): 14,16,20
  - Encryption - Authentication:
    - AES256 -SHA2 256
    - AES128 - SHA2 256
    - AES256 - SHA2 512
- Phase2
  - PFS group (DH group): Same as phase1
  - Key life: 3600
  - Encryption - Authentication:
    - AES256 -SHA2 256
    - AES128 - SHA2 256
    - AES256 - SHA2 512
- Dead Peer Detection
  - Dead Peer Detection: enable
Click on the Save button to create the policy.

Configure IPSec VPN

Goto VPN from left side navigator
Select tab IPsec connections and click Add button
Configure VPN with the following setting:
- General Settings
  - Name: Acreto
  - IP version: IPv4
  - Connection type: Tunnel interface
  - Gateway type: Initiate the connection
  - Activate on Save: enable
- Encryption
  - Policy: Acreto_ipsec
  - Authentication type: Preshared key
  - Preshared key: key (copied from Wedge)
  - Repeat preshared key: key (copied from Wedge).

Gateway settings

Local gateway
- Listening interface: wan_ip
- Local ID type: DNS
- Local ID: peer_id (copied from Wedge)
Remote gateway
- Gateway address: acreto_gateway (copied from Wedge)
- Remote ID type: IP address
- Remote ID: acreto_gateway (copied from Wedge)

Click Save.

Upon saving, the tunnel will try to establish a connection with Acreto, and upon successful connection, the tunnel will come up.

Task 3: Configure IP on the new tunnel interface

Goto Network from left side navigator
Select tab Network
Click the blue bar on the wan interface. It will unfold the new VPN tunnel interface formed
Click the tunnel interface and add some random IP
- IPv4/netmask - 2.2.2.2 /32
Click Save.

Task 4: Configure Routing

Goto Routing from the left side navigator
Select tab Static Routing
Click Add button to configure the following routes

Direct route to Acreto gateway to establish the connection

Destination IP/Netmask : acreto_gateway_ip /32 (copied from wedge)
Gateway: ISP_gateway
Interface: wan
Distance: 0

Default route to through the tunnel

Destination IP/Netamsk: 0.0.0.0 /0
Gateway: blank
Interface: tunnel_inetrface
Distance: 10

Task 5: Configure Security Rules

Goto Rules and policies from left side navigator
Select tab Firewall rules and click Add firewall rule to add a new firewall rule
Create the firewall rule with values as below
- Rule name: to_acreto
- Action: Accept
- Source Zone: LAN
- Source network and devices: Any
- During Scheduled time: All the time
- Destination zones: Any
- Destination network: Any
- Services: Any

Task 6: Verify the connection

Verify the connection is going through Acreto.

From any server in the internal subnet, do traceroute or mtr and verify if traffic is going through Acreto.

Summary

Once the VPN connection is successfully established, all the internal traffic to the internet will be routed through Acreto.

Troubleshooting - FortiGate Cloud Management issue

Issue

Forticloud management connection was lost after connecting to Acreto.

Description

When FortiGate is set up to route all traffic through Acreto, it may lose connection with FortiGuard/FortiCloud management servers.

Reason

When the default route is set towards Acreto, FortiGate sends all the FortiCloud connections through Acreto. However, while sending these requests, FortiGate uses its WAN IP as the source of the connection, which may not be allowed in Acreto EcoSystem.

To fix the issue, apply the solutions listed below:

Solution: Changes in FortiGate ( from the Customer side)

Alternatively, this issue can be resolved at the Customer location by setting Fortigate’s LAN IP as the source address for Fortiguard by following the steps below :

Login to Fortigate Dashboard
Goto Network > Interfaces > select the LAN interface
Copy the IP address of the LAN interface of FortiGate (Gateway IP for the LAN network)
Login to CLI of FortiGate.
Run the following commands:

config system fortiguard
set source-ip <ip_address_lan_interface>
end

Any one of the above solutions will restore the connection with FortiCloud.

Ubiquiti Unifi IPsec Configuration

Overview

In this article, you will learn how to connect to the Acreto ecosystem with your Unifi USG/Edgerouter using IPSec VPN.

Prerequisites

Ubiquiti USG/EdgeRouter installation
Ecosystem set up with proper security policies

How-To

Step1: Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here. If you already have one, make sure that it’s IPsec type and jump to How-to.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

Step 2: Read the IPsec Gateway Values Required for Ubiquiti Configuration from Acreto Ecosystem

To proceed with the Ubiquiti configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Recommended Ciphers
Peer ID

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Step 3: Configure VPN settings on Ubiquiti

Login into Ubiquiti and enter Configuration mode
```
configure
```
Enable the auto-firewall-nat-exclude feature which automatically creates the IPsec firewall/NAT policies in the iptables firewall.
```
set vpn ipsec auto-firewall-nat-exclude enable.
```

Create the IKE / Phase 1 (P1) Security Associations (SAs) by providing the following values

set vpn ipsec ike-group AcretoGate key-exchange ikev2
set vpn ipsec ike-group AcretoGate lifetime 10800
set vpn ipsec ike-group AcretoGate proposal 1 dh-group 16
set vpn ipsec ike-group AcretoGate proposal 1 encryption aes256
set vpn ipsec ike-group AcretoGate proposal 1 hash sha256

Create the ESP / Phase 2 (P2) SAs.

set vpn ipsec esp-group AcretoGate lifetime 3600
set vpn ipsec esp-group AcretoGate proposal 1 encryption aes256
set vpn ipsec esp-group AcretoGate proposal 1 hash sha256
set vpn ipsec esp-group AcretoGate compression disable

Execute the below command using values from previous steps: Configure the below steps with values for Gateway address, Preshared key and Peer Id collected in Step 1.

GATEWAY_ADDRESS - available in step 1, number 1 on screen.
PRE-SHARED KEY - available in step 1, number 2 on screen.
PEER ID - available in step 1, number 4 on screen.

set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS authentication mode pre-shared-secret
set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS authentication pre-shared-secret PRE-SHARED_KEY
set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS description ipsec
set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS authentication id PEER_ID

Copy the WAN IP and router address from the Ubiquiti gateway device

Use the above WAN IP and conFigure the Peer with the below commands

set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS local-address LOCAL_WAN_INTERFACE

Link the SAs created in the above steps to the remote peer and bind the VPN to a virtual tunnel interface (vti0).

set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS ike-group  AcretoGate
set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS vti bind vti0
set vpn ipsec site-to-site peer GATEWAY_IP_ADDRESS vti esp-group AcretoGate

Configure a static route to route gateway address to the internet directly. Use router address copied from step 6.
```
set protocols static route GATEWAY_IP_ADDRESS next-hop ROUTER_IP_ADDRESS
```

Configure default static route to send all traffic to Acreto VPN.

set protocols static interface-route 0.0.0.0/0 next-hop-interface vti0

Commit the changes and save the configuration.
```
commit ; save
```

Summary

Once the VPN connection is successfully established, all the internet traffic will be routed through Acreto.

Watchguard IPsec Configuration

Overview

This article will show you how to configure the Watchguard to connect to the Acreto Ecosystem. This configuration will be made by using IPsec VPN.

Prerequisites

Watchguard installation
Ecosystem set up with proper security policies

How-To

Step 1: Create Gateway for IPsec

Firstly, you will need to create a new Gateway device in the Acreto platform. Instructions on how to create a new Gateway are available here.

Name: IPsec connection name must meet the same requirements as the Strongswan connection name (letters and numbers only).
Category: IoT
Type: IPsec
Allow connection from: Empty (describes the source IP address where the IPsec connection will be permitted).
Local Networks: any local network addresses that will be routed through this gateway.

Info

Step 2: Read the Values from Acreto Gateway

To proceed with the Watchguard configuration, you will need a few values from an existing committed Acreto Gateway:

Gateway Address
Pre-Shared Key
Peer ID
Recommended Ciphers

All of these may be found within the Gateway details panel - view the below animation for further instruction.

Animation how to get required values from Gateway [▶]

Step 3: Configure VPN settings on Watchguard

Create Phase 2 proposal - Navigate to VPN > Phase 2 Proposals and click ADD button
Create Phase 2 with the following values and SAVE

Name: Acreto
Description: Acreto phase2 selectors
Type: ESP
Authentication: SHA-512
Encryption: AES(128-bit)
Time: 1 hour

To set up IPsec VPN navigate to VPN > BOVPN Virtual Interfaces and click ADD from the right pane
Select Remote Endpoint Type as Cloud VPN or Third-Party Gateway
Provide the Preshared key copied from the Wedge dashboard in Step 1 and click ADD button to configure Gateway Endpoint
Configure Local gateway - Select Interface By Domain Name and provide the Peer ID copied from Wedge dashboard in Step 1.
Configure Remote gateway with values copied in Step 1 and click OK

Static IP Address : Wedge_gateway
By IP Address: Wedge_gateway

Click Phase 1 Settings tab
the following values

Version: IKEv2
Keep-alive interval: 540 seconds
Traffic-idle timeout: 30 seconds

Select the Phase 1 Transform set in Transform Settings and click EDIT. Set the following values and click OK.

Authentication: SHA2-512
Encryption: AES(28-bit)
SA Life: 3 hours
Key Group: Diffie-Hellman Group 15

Click Phase 2 Settings and configure Phase 2 with values as below

Enable Perfect Forward Secrecy: Diffie-Hellman Group 15

Select Acreto from Phase 2 proposal and ADD and SAVE.

Verify the tunnel status - Navigate to SYSTEM STATUS > VPN Statistics > Branch Office VPN and click IKEv2 Virtual Interface. If the VPN is successfully established, the statistics related to VPN will be displayed.

Summary

Once the VPN connection is successfully established, all the internet traffic will be routed through Acreto.

IPsec Gateway

Overview

Routing

Default Route

Subsections of IPsec Gateway

AWS EC2 - Automatic IPsec Configuration

Prerequisites

AWS - Create VPC

Acreto - Create Gateway

AWS VPC - Create EC2 and Install Acreto Gateway Software

AWS VPC - Update VPC Subnet Route Table

AWS EC2 - Disable source/destination checks for EC2 instance

Acreto - Configure Security Policy

AWS Site-to-Site VPN using Virtual Private Gateway

Before You Start

Overview

Network Diagram

Concepts and Glossary

Prerequisites

The Purpose of Site-to-Site IPsec VPN

How To: Configure Site-to-Site VPN in AWS

Step 1: Create VPC

Step 2: Create Subnet

Step 3: Create Internet Gateway

Step 4: Create Route Table

Step 5: Create Customer Gateway

Step 6: Create Virtual Private Gateway

Step 7: Create and Configure VPN Connection

Step 8: Create Acreto Gateway for IPsec

Step 9: Read the Configuration

Step 10: Update AWS VPN tunnel configuration

How-to: Update Route Table in AWS

Verify the connections

References and Related Articles

Summary

Azure Site-to-Site connection using VPN Gateway

Before You Start

Overview

Network Diagram

Pre-requisite

How To: Configure Site-to-Site VPN in Azure

Step 1: Create a virtual network

Step 2: Create a VPN gateway

Step 3: Create a local network gateway

Step 4: Create a VPN connection

Step 5: Download strongswan configuration

Step 6: Create Gateway on Wedge with option AWS Site-to-Site IPsec and Azure Tunnel IP

Step 7: Read the Configuration

Step 8: Update the PSK from Wedge in Azure VPN

Step 9: Update IPsec Parameter

Step 10: Check Connection

References and Related Articles

Summary

Connect to multiple VPCs in AWS using Transit Gateway

Before You Start

Overview

Network Diagram

Concepts and Glossary

Prerequisites

The Purpose of Site-to-Site IPsec VPN

How To

Configure Site-to-Site VPN in AWS

Step 1.1: Create Customer Gateway

Step 1.2: Create Transit Gateway

Step 1.3: Create Transit Gateway attachment

Step 1.4: Create and Configure VPN Connection

Step 1.5: Create Acreto Gateway for IPsec

Step 1.6: Read the Configuration

Step 1.7: Update AWS VPN tunnel configuration

Step 1.8: Update the Transit Gateway Route Table

Step 1.9: Update Route the Table for the Subnet

Attach Secondary VPC in the same account to the Transit Gateway

Step 2.1: Create Transit Gateway attachment for Secondary VPC

Step 2.2: Verify the routes from the new VPC Transit Gateway attachment is available on the Transit Gateway Route table.

Step 2.3: Update the routes for the Subnet in Secondary VPC

Verify the connections

References and Related Articles

Summary

Fortinet FortiGate Dual VPN setup

Before You Start