two questions

Donald Becker becker@cesdis.gsfc.nasa.gov
Mon Nov 15 21:49:04 1999


On Mon, 15 Nov 1999, Peter Green wrote:

> > This is almost certainly a routing problem.  When you can transfer
> > packets without errors (checking /proc/net/dev for the counts), but
> > communication does not occur, it's likely someone with the wrong IP
> > addresses, netmask or route.
> 
> To check, I made sure /proc/net/dev was incrementing during the ping. Where
> 'A' is the machine with the Realtek cards in it and 'B' is another machine
> connected via crossover cable:
> 
> ping A->B: A's transmit bytes and packets incremented
> ping B->A: A's receive packets (but NOT bytes) incremented
> A's configuration:

What is the configuration of 'B'? 

> 	  RX packets:158 errors:0 dropped:0 overruns:0 frame:0
> 	  TX packets:45 errors:0 dropped:0 overruns:0 carrier:0

This *really* looks like a routing problem.

> Destination      Gateway         Genmask         Flags Metric Ref  Use Iface
> 10.0.0.107       *               255.255.255.255 UH    0      0      0 eth0
> 10.0.0.0         *               255.0.0.0       U     0      0      0 eth0
> 127.0.0.0        *               255.0.0.0       U     0      0      0 lo

Donald Becker
Scyld Computing Corporation, and
USRA-CESDIS,   becker@cesdis.gsfc.nasa.gov

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