Subject: Re: ARP queries; what do they mean?
To: Richard Rauch <rauch@rice.edu>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: netbsd-help
Date: 12/12/2002 09:54:44
On Thu, Dec 12, 2002 at 02:45:31AM -0600, Richard Rauch wrote:
> > >>>>> Richard Rauch writes:
> >
> > Richard> That's kind of what I figured.  But then, why tell ...253 to
> > Richard> tell itself?
> >
> > Unless I misremember this is what is called "gratuitous ARP", an
> > interface arps for itself simply to announce to the world "here I am,
> > now at this (possibly changed) mac address". It will give listeners a
> > chance to update their arp tables.
> 
> Thanks.  But then we're back to: It seems that I shouldn't be seeing this
> if there is no 66.136.7.253 machine in my network.  (...249 through ...252
> are assigned to actual machines; ...254 is on the other end of the DSL.
> (^&  ...253 "belongs" to me, but is not bound to anything at this time.)

Was this on your private LAN, or on the ADSL side ?
Is it possible that someone has stolen your IP (maybe just by
misconfiguration)  ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 23 ans d'experience feront toujours la difference
--