We have a 3com x506 connected to a cable modem. The firewall has an internal IP on both the WAN and LAN interfaces. Everything works fine as far as our users connecting to the internet, but now I am trying to port forward into a server on our network. All of our computers are on the 192.168.x.x network. The lan port on the x405 is set to a 192.168.x.x ip The cable modem assigns a 10.1.10.x ip address to the wan port of the x506. When I try to forward in to the internal server, it times out after a few minutes. I'm thinking maybe it is the 10.1.10.x ip on the wan port. Should I change it to be 192.168.x.x ?
Thank you for helping!