I have 4 LAN to LAN VPNs terminating at my cyberoam gateway (front firewall). These are..
I also have another subnet local to the cyberoam (192.168.10.0/24) that I also want to allow through the tmg firewall.
I need to allow the traffic through the back firewall Forefront TMG 2007.
I have done all the things I think I need to with zero success.
I have added in the networks and created a network rule (routed).
I have tried creating a new network (called Remote subnets) and adding the subnets to this group
I have also tried creating 2 firewall rules to allow traffic each way from the remote subnets to the internal network and vice versa.
I can't see anything else to do and I've tried various configurations. There are no errors in the logs to work on
The Forefront server is on the 10.10.10.0/24 network with an ip address of 10.10.10.24. This has a 2nd NIC connected to the front firewall.
The address of the TMG (back firewall) is 10.0.0.2
The address to the Cyberoam (front firewall and VPN end point) 10.0.0.1
I know all the routing is okay as I can access the remote subnets from the subnet behind the TMG without a problem. Its just opening up the TMG firewall.