Simple pinging problem

From: Thomas, Varghese (vnthomas@xxxxxxxxxxx)
Date: Thu Oct 25 2001 - 15:14:53 GMT-3


   
Hello folks,

I connected a cross LAN cable between router's ethernet port and my PC(win2K);
Problem is, I can NOT ping PC from router end, but I can ping the Router
from PC end.

router ip - 172.16.10.65/26 & PC's IP: 172.16.10.67/26

Router's Sh arp command shows my PC's MAC & IP address correctly(I can very
well see it from deb arp as well)

When I turned on, debug ip packet, I can see the packets are being sent to
ethernet interface, but it is not reaching my PC(as I don't see it in my PC's
arp table) and nothing comes up in my sniffer.

When I ping from PC, I can see correct ip packet sequences from router's debug
output.

I can even, telnet to the router from my PC via this cross cable, but again,
pinging from the telenet session still fails.

I do not see any output from deb ip icmp while I ping from router, but shows
usual output when I ping from PC.

Router do not have any special config and even I brought down all routing.

When I replace my PC with another router(with the same cross cable), it works
fine.

I tried with different router models/ios and shows the same result.

Any hints!!!

Tx n RD



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