This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

FireBrick to FireBrick IPsec (Howto)

From AAISP Support Site
Revision as of 15:16, 28 April 2015 by AA-Andrew (talk | contribs)
Jump to navigation Jump to search

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

Manuals

Do read the official FireBrick manuals for more information this is just a simple howto, which just covers the basics.

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>

If you firewall WAN to 'Self' (The Firebrick, then a firewall filter may be needed too, eg:

     <rule name="IPsec from London FB" protocol="50" action="accept" source-ip="198.51.100.1"/>

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>

If you firewall WAN to 'Self' (The Firebrick, then a firewall filter may be needed too, eg:

     <rule name="IPsec from Reading FB" protocol="50" action="accept" source-ip="203.0.113.1"/>