Connecting a pfSense Firewall to the Cloud Using Aviatrix Site2Cloud¶
This document describes how to configure an IPsec tunnel between an Aviatrix Gateway and a pfSense firewall using Aviatrix Site2Cloud.
Add a Site2Cloud tunnel in Aviatrix Controller¶
- Login to your Aviatrix Controller.
- Select the Site2Cloud navigation item on the left navigation bar.
- Click on + Add New near the top of the Site2Cloud tab.
- Under Add a New Connection, enter the following:
Field Expected Value VPC ID / VNet Name Select the VPC where this tunnel will terminate in the cloud. Connection Type Unmapped unless there is an overlapping CIDR block. Connection Name Name this connection. This connection represents the connectivity to the edge device. Remote Gateway Type Generic Tunnel Type UDP Algorithms Unchecked Encryption over ExpressRoute/ DirectConnect Unchecked Enable HA Unchecked Primary Cloud Gateway Select the Gateway where the tunnel will terminate in this VPC. Remote Gateway IP Address IP address of the pfSense device. Pre-shared Key Optional. Enter the pre-shared key for this connection. If nothing is entered one will be generated for you. Remote Subnet Enter the CIDR representing the network behind the edge device that this tunnel supports. Local Subnet The CIDR block that should be advertised on pfSense for the cloud network (will default to the VPC CIDR block)
- Click OK
Create an IPsec tunnel in pfSense¶
Login to your pfSense dashboard.
In the VPN menu, select IPsec.
Click + Add P1
Populate the fields according to your preferences. The important fields are (with extra emphasis on a few key fields):
Field Expected Value Key exchange version IKEv1 Remote Gateway Enter the public IP address of the Aviatrix gateway here.
Phase 1 Proposal
Field Expected Value Authentication Method Mutual PSK My identifier My IP address Peer identifier IP address. Enter the private IP address of the remote Aviatrix Gateway Pre-Shared Key Enter the PSK from the Site2Cloud tunnel creation step.
Phase 1 Proposal (Algorithms)
Field Expected Value Encryption Algorithm AES - 256 bits Hash Algorithm SHA1 DH Group 2 (1024 bit)
Field Expected Value Disable rekey Unchecked
Add a Phase 2 entry
Save the Phase 2 entry
Test the tunnel is up