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Date:      Fri, 14 Dec 2007 20:30:00 +0100
From:      Max Laier <max@love2party.net>
To:        "Bruce M. Simpson" <bms@freebsd.org>
Cc:        Tom Judge <tom@tomjudge.com>, freebsd-net <freebsd-net@freebsd.org>, freebsd-pf@freebsd.org
Subject:   Re: Spurious error from i[pf]_carp
Message-ID:  <200712142030.14728.max@love2party.net>
In-Reply-To: <4762AC1E.3030101@FreeBSD.org>
References:  <47628E11.7030803@tomjudge.com> <4762AC1E.3030101@FreeBSD.org>

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On Friday 14 December 2007, Bruce M. Simpson wrote:
> Tom Judge wrote:
> > I guess that there will be more than one VRRP implementation that
> > does not generate packets with a header the same size as the carp
> > header.
> >
> > I will look into generating a patch for this over the weekend,
> > however any thoughts/suggestions would be appreciated before I start
> > working on it.
>
> Sounds fine to me, thanks for doing this.

Alternatively you could change IPPROTO_CARP in netinet/in.h to another=20
unused protocol number.  This is really the preferred way of dealing with=20
mixed CARP and VRRP environments as the CARP packets might in turn=20
irritate the VRRP routers, too.

> It is regrettable that CARP had to come into existence in the first
> place because of the VRRP intellectual property situation, and I guess
> this is one of the turds which end up floating in everyone's midst as a
> result, if you'll pardon the analogy.

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