Ping & extended Ping

dharmasena · ‎06-08-2007

I did nt get a reply for the Ping command used on a router (destination was another PC on a different network connected over the serial interface), but when i used the extended ping using the LAN interface IP as the souce IP, the extended Ping command worked for the same destination adress? What could be the reason?

Manoj Wadhwa · ‎06-08-2007

The normal ping command uses the outgoing interface of the router as the source address. Make sure the the destination router has a reverse route for outgoing interface of the source router. Thanks!

- Manoj

mohammedmahmoud · ‎06-09-2007

Hi,

Agree with Manoj, this is most probably due to the LAN IPs of this site has a return route, but the WAN IPs (which are used as the source of the echo request) doesn't have a return route, make sure that the PC has a correct default gateway and if this is not a leased point-to-point connection between the 2 sites (may be an MPLS VPN) make sure that the provider has routed your LAN and WAN IPs correctly.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.