SUMMARY: vmunix: arp: illegal IP address 255.255.255.255

From: Keith Weaver <Keith.Weaver_at_cciw.ca>
Date: Wed, 05 Nov 1997 13:47:01 -0500

Original question posted below.

Thanks for the responses from Tom, Mark and Jagadeesh who suggested that
the ELS10 had not been configured or perhaps misconfigured (this still may
be the case). Cabletron is still trying to figure out what may be the
problem.

It appears the error is associated with something on our WAN and can be
blocked by routers if you can determine who is generating incoming packets
from outside (Broadcast) which in turn, generates invalid responses from
the ELS10's.

So, as yet, there is no definitive answer to our problem, but we do have a
workaround.

Keith.

Responses from:
tom_at_finwds01.tu-graz.ac.at
huehlsm_at_indy.navy.mil
jag_at_getafix.cmc.net.in

Original question: Tue, 28 Oct 1997, Keith Weaver wrote:

> We have installed some Cabletron ELS10 SmartSwitch hubs (3) and since then
> have been logging errors displayed on dxconsole and /var/adm/messages on
> all our Alphas. The hardware addresses are the MAC addresses for all ports
> on the hubs that are active (in use).
>
> Oct 14 17:10:04 biachs12 vmunix: arp: illegal IP address 255.255.255.255 is
> used by hardware address 00-00-1D-66-7D-EE!
> Oct 14 17:10:04 biachs12 vmunix: arp: illegal IP address 255.255.255.255 is
> used by hardware address 00-00-1D-66-83-4E!
>
> As you can notice, we have been trying to resolve this over the last 2
> weeks with Digital and Cabletron... but no luck so far.
>


R. Keith Weaver (Canada Centre for Inland Waters)
Canadian Hydrographic Service Phone: (905) 336-4538
867 Lakeshore Road Fax: (905) 336-8916
Burlington, ON
L7R 4A6
Received on Wed Nov 05 1997 - 20:01:31 NZDT

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