I am trying to setup a GRE tunnel between network A 10.10.10.0 with mask 255.255.255.128 and network B 20.20.20.0 with mask 255.255.255.192. After I’ve setup routers on both sides with Tunnel0. I am getting “% Network not in table” error message. What could be the problem? Where on the web other then cisco.com I can look for information about setting up gre tunnel.
If you need more details or want to email me any docs my address is roman@natlmedia.com. THanks