I am trying to connect a remote site using codex modems and a 14.4k
low speed data line. When I connected everything the router on both
ends show that the serial interface and the lines are up. My problem
is when i ping the serial interfaces from the remote or
local router, the success rate is zero, but when i ping the ethernet
port either from the local or the remote router I get success rate
ranging from zero to 100 percent. But surprisingly all my high speed
lines (64 K) do not experience this ping failure on the serial
interfaces either remotely or locally. Would anyone know what couls be
causing this problem?
My central routers are both cisco 2600 and all the remote routers are
cisco 1601.