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ICMP PACKETS ACCROSS CISCO3660

Hi all

please look at this hypothetical model which I will use to try and describe my problem

1 2 3 4 5

Proxy Server - 3600 - 3660 - 1751 - Device A

100.0.51 40.0.3 40.0.1 40.72.1 40.72.110

The IP address all start 10.

Device A is a bog standard computer.

3600, 3660 and 1751 are routers.

Proxy Server is what it says.

I am having trouble understanding why I cant proving connectvity for Device A to Proxy Server.

I am sitting on a device connected via 3660, and I would presume that I should be able to telnet to 1751 then ping through to proxy server and this should be enough to satisfy me that the link is ok. However when I am on 1751 and I try and ping anything beyond 3660 I get request timed out. On the rare occassions I can get to device A and ping proxy server the ping works 100%. If I go to 3660 and ping proxy server it works 100%, and if I ping back to 1751 or the device the ping works 100%.

I have looked at the config of 3660 and there is no ACL on this router.

My question is where else should I be looking to resolve this problem, though it is not really a problem because the device works, however I cant prove the path from the routers.

Any suggestions would be gratefully received

Many Thanks

1 REPLY
Anonymous
N/A

Re: ICMP PACKETS ACCROSS CISCO3660

Since you are able to ping from 3660 , it will be something to do with 1750. Check the configurations in 1750 to see if there is any access-list or filters.

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