Site to Site IPSEC - Multiple Subnets

[Silver]

There are two remote locations. There is one Untangle unit per location. Site A is on 192.168.1.0/24 subnet and Site B is on 192.168.2.0/24 subnet. IPSEC has been established between Site A and Site B and traffic flows between Site A and Site B (no issues). All the routing tables are correct. Site A is connected to another subnet (192.168.3.0/x) via an Internal router (one leg of the Internal router is on 192.168.1.0/24 network and the second leg is on 192.168.3.0/24 network). Site B is connected to another subnet (192.168.4.0/x) via another Internal router (one leg is of this Internal router is on 192.168.2.0/24 network and the second leg is on 192.168.4.0/24). How do pass traffic for 192.168.3.0/24 and 192.168.4.0/24 network through the IPSEC Tunnel.

There is not much documentation on IPSEC VPN for review. Certain posting indicated that a second tunnel has to be setup between the Untangle units, but Untangle on SITE A is only connected to 192.168.1.0/24 subnet and Untangle on SITE is only connected to 192.168.2.0/24. Neither one has a connection to the secondary networks (192.168.3.0/24 and 192.168.4.0/24) so we can not define those networks as local networks on the Untangle units and include them in the IPSEC Tunnel.

Any help is appreciated.

[zac1333]

I tried to do something similar to this the other day and I don't think that's possible. Even if you try to setup a static route to it I wasn't able to get it to work. Hope someone out there has an answer.

[Silver]

I got it working. I am putting together a document with all the steps and screen shots. If you are interested please let me know, and I will provide necessary information.