FireBrick to FireBrick IPsec (Howto)

Here we will use an IPsec tunnel between two FireBricks. We will use IKE2 and use a (strong) preshared password.

Manuals

Do read the manuals 12.1.3. Setting up Manual Keying

Network Overview:

	FireBrick London	FireBrick Reading
LAN IP range	192.168.0.0/24	10.0.0.0/24
WAN Address	203.0.113.1	198.51.100.1

We'll want to end up with machines on each LAN being able to contact each other.

FireBrick London Config

  <ipsec-ike comment="toReading">
     <connection name="toReading" local-ip="203.0.113.1" peer-ips="198.51.100.1" graph="ReadingIPsec" routes="10.0.0.0/24" local-ID="1" peer-ID="1" auth-method="Secret" secret="mySecretPassword" mode="Immediate"/>
  </ipsec-ike>

FireBrick B Config

  <ipsec-ike comment="toLondon">
     <connection name="toLondon" local-ip="198.51.100.1" peer-ips="203.0.113.1" graph="LondonIPsec" routes="192.168.0.0/24"local-ID="1" peer-ID="1" auth-method="Secret" secret="mySecretPassword" mode="Immediate"/>
  </ipsec-ike>