[newbie] Ip - forwarding

How do you know it is compiled in your kernel?

[newbie] Routing problem

Domain A and Domain B won't communicate. The PDC on Domain B's IP address is 128.168.0.2. All the servers are NT except for the router which is linux. Router - Linux (Mandrake) Linksys card IP - 192.168.0.19 (255.255.255.0) (Static) 3Com Nic - 128.168.0.3 - (255.255.0.0) I am using a