I have configured a new 2600 router (router a) and implemented a GRE tunnel to another router (router b). the tunnel works fine. Heres the problem. Router B can ping the remote end of the tunnel interface, and its local end. Router A however can ping its remote end of the tunnel interface, but when i ping its local end, it has verying degrees of success, between 0 and 255.
Can anyone point me in the right direction?
