FireBrick IPsec config

The FireBrick needs a configuration for the connection, and roaming pools and user identities. The connection can be used for any number of devices at once with the same pool of IP addresses; each would have a user name and password defined.

The basic server config is in ipsec-ike containing a connection and roaming entry, e.g.

<ipsec-ike>
 <connection name="server" roaming-pool="roam-pool" auth-method="Certificate" peer-auth-method="EAP" mode="Wait" local-ID="FQDN:server.example.com"/>
 <roaming name="roam-pool" ip="[ranges of LAN IPs]" DNS="[DNS, e.g. 8.8.8.8]"/>
</ipsec-ike>

Each roaming user then needs an eap user record.

 <eap name="fred" full-name="Fred Bloggs" password="[password]" subsystem="IPsec" methods="MSChapV2"/>

Here is how the above three config sections look in the User Interface (UI):

FireBrick SCreenshots
IKE Settings (UI). (Config - Edit - Tunnels - IPsec - Add, IKE connection)
Roaming Pool Settings (UI). (Config - Edit - Tunnels - IPsec - Add, IKE roaming IP pools
EAP User (UI). (Config - Edit - Users - Add, User access control via EAP

Firewall

You will also want to look at the Firewall on the FireBrick and allow traffic where required, for example, to Allow the IPsec users to connect to the Internet via your PPPoE connections use something like:

   <rule-set name="FromIPSec" source-interface="ipsec" no-match-action="continue">
      <rule name="AllowInternet" target-interface="pppoe" action="accept"/>
   </rule-set>