I have a IP router of 172.16.X.1/22 that cannot ping router 10.51.X.1. I however can log onto the 10.51X.1 router and ping 172.16.x.1. So I figure a route needs to be added to the 172 router. I logged onto the 172 router and added static ip route 10.51.x.0 255.255.255.0 10.51.x.1 This did not work. Any other ideas why I can ping one way but notthe other?