> I am not being able to ping a local interface on a router. > The encapsulation is default and is connected back to back > on a serial interface to the next router. The output of show > interface > shows that the interface is up.
In order to ping a serial interface the actual ICMP packet exits the router, "bounces" (for lack of a better word) of the directly connected remote router, and returns to the original router. If your directly connected router is not reachabe, you will not be able to ping your local interface. You will notice that it will actually take longer to ping your local router then a directly connected router because of this behavior. Try this, ping the remote router. If it does not work, then fix that problem first. Make sure you have clock-rate turned on the DCE serial interface if this is a lab environmnet. Once you can ping the remote router, then try to ping the local interface. I bet it works. As an experment try the following. On the remote router setup an access list that prevents ICMP (but allows all other IP) and apply to the inbound serial interface. This will prevent the local router from pinging it's own local serial interface. Cool, huh! Best of luck, Paul Borghese Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25075&t=25040 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
