Re: ip/arp problems in switched environment (kernel 2.0.36)

Volker Dormeyer (V.Dormeyer@t-online.de)
Mon, 11 Jan 1999 07:57:24 +0000


Matthias Welwarsky wrote:

> Ethernet and Token Ring have different bit transmit order on the wire.
> LSB/MSB first is reversed. If you look at the MAC-Addresses and flip the
> bits around you'll see that the switch hasn't really translated the
> address. It's just the same address with the bits in each byte swapped.
> You've provided too little information to precisely say what's going
> wrong. A dump of the arp packets on both sides of the switch would have
> helped much.

Hi Mathias,

Of course, thats what I meant with translation.

> I'd carefully look at the configuration of the switch. Seems that it
> already does some translations to make IPX work, maybe others are needed
> for ARP. If the switch translated the MAC addresses of the packets but
> not the MAC address *within* the ARP reply packet, you're lost ;-)

Ok, I will do some further tests with a packet sniffer before
and behind the switch.

thanks for your answer...

-Volker-

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sender: Volker Dormeyer
eMail:  V.Dormeyer@t-online.de
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