I have a 1721 With a 100 BaseT ( Fastethernet0(192.168.0.254)) and a 10 baseT (WIC1ENET Ethernet 0(192.168.1.254)). I am trying to get the router to route traffic from 1 port to the other. I have a ADSL Router (192.168.0.1) the other side of the 1721, I just want it to route internet traffic to me and vice-versa. I have add ed the route, removed it tried adding a default route. I suspect it may be a command that I have missed. I have made sure the Ehternet I/f's are up and addes ip routing.