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To: Tom Samplonius <tom@sdf.com>
cc: hackers@freebsd.org
Subject: Re: MROUTING & gated 
In-reply-to: Your message of "Sat, 07 Dec 96 01:23:44 PST."
             <Pine.NEB.3.94.961207012131.28524A-100000@misery.sdf.com> 
Date: Sat, 7 Dec 1996 09:53:15 PST
From: Bill Fenner <fenner@parc.xerox.com>
Message-Id: <96Dec7.095323pst.177711@crevenia.parc.xerox.com>
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In message <Pine.NEB.3.94.961207012131.28524A-100000@misery.sdf.com> you write:
>  In order for gated to handle ospf properly, does MROUTING need to be
>enabled in the kernel?

No.  MROUTING is for if you're a multicast router, not if you're using
a routing protocol that uses multicast.

>  tcpdump reveals that gated sends ospf HELO requests to 224.0.0.5

The 224.0.0.x range of groups is not forwarded by multicast routers, so
even if you did enable MROUTING (and run a multicast routing daemon),
these packets would never get forwarded.

  Bill