From owner-freebsd-net  Thu Jan 17  6:18:34 2002
Delivered-To: freebsd-net@freebsd.org
Received: from web.cs.ndsu.nodak.edu (web.cs.ndsu.NoDak.edu [134.129.125.7])
	by hub.freebsd.org (Postfix) with ESMTP id 0373037B41C
	for <freebsd-net@FreeBSD.ORG>; Thu, 17 Jan 2002 06:18:21 -0800 (PST)
Received: (from tinguely@localhost)
	by web.cs.ndsu.nodak.edu (8.11.4/8.11.4) id g0HEIKh68602;
	Thu, 17 Jan 2002 08:18:20 -0600 (CST)
	(envelope-from tinguely)
Date: Thu, 17 Jan 2002 08:18:20 -0600 (CST)
From: mark tinguely <tinguely@web.cs.ndsu.nodak.edu>
Message-Id: <200201171418.g0HEIKh68602@web.cs.ndsu.nodak.edu>
To: radsinha@yahoo.com
Subject: Re: urgent question regarding IP-in-IP encapsulation
Cc: freebsd-net@FreeBSD.ORG
Sender: owner-freebsd-net@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-net.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-net>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-net>
X-Loop: FreeBSD.org


>  I have a question regarding Ip-in-IP encapsulation in
>  freeBSD. In my implementation, I want a multicast
>  router to encapsulate multicast packets destined for
>  certain groups with an extra IP header before
>  forwarding them out.

What you describe is exactly a DVMRP tunnel. mrouted(8) performs
this function and several other required tasks.

Are you trying to do something beyond tunneling multicast over
an IPv4 network, such as tunneling inside the DVMRP tunnel or PIM
network?
--mark tinguely.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message