Ping a Serial Interface on a 3845 router

Unanswered Question
Jul 9th, 2008

Currently I'm using 2x3845 routers with 4x 16 port SSC cards. Each serial interface is set-up with an IP address and a peer IP address. (Please see attach configuration).

I log into the router using a Linux laptop. I'm unable to ping the serial IP address, however I can ping the peer IP address. Each serial interface is set with PPP enable. My question why can I ping the serial interface IP address?





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mahmoodmkl Wed, 07/09/2008 - 04:47

Hi


There is a access-list which is denying all the traffic under u r serial interface.


Remove it and try if u can.


Thanks

Mahmood

drking0414 Wed, 07/09/2008 - 05:33

R U talking removing the following statement "access-list 101 deny ip any any" from the access list? This was the very first thing I did and I still do not have any luck.


a.alekseev Wed, 07/09/2008 - 04:52

It depends not only on your stetting but it also depends on the settings on the another side.


ping for localWAN intefaces always travels through remote end.


Kevin Dorrell Wed, 07/09/2008 - 05:17

This, unfortunately, is one of the inherent behaviors of a PPP link. You can ping the peer address but not your own.


Kevin Dorrell

Luxembourg


drking0414 Wed, 07/09/2008 - 05:35

Can you point me to a "DOC" or "RFC" that will help explain this to my peers?

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