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Re: TX ok but no RX packets at all!



According to Joseph H. Fry,
> I have two identical Debian Sarge boxes... I can say identical because I
> used dd to copy the HDD from the first one I set up (#1) and placed it in
> the other (#2). I have changed the hostname, mailname, and IP address in the
> second machine and both seem to work ok except the second machine will not
> receive any packets whatsoever! 
> 
> ifconfig looks similar between the two machines, except the IP and MAC of
> course 
> 
> route -n looks correct 
> 
> iptables -L shows all policies ACCEPT 
> 
> so they both look like they should work... however if I ping from #2 (the
> clone) to #1 the packets get received and responded to (as shown by tcpdump)
> but #2 still shows RX packets:0 errors:0 dropped:0... 0 ...0 ..0 
> 
> I just don't get it! The cable is good; the port is good, hell the NIC in #2
> was good in XP a couple of days ago. Any help would be appreciated!

You *know* the cable is good?  Twisted pair cables use
separate pairs for send and receive.  So being able to send
doesn't mean the cable is good.

You *know* the port on the switch is good?  Same issue there.

T



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