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From: Archie Cobbs <archie@whistle.com>
Message-Id: <199610281803.KAA17336@bubba.whistle.com>
Subject: Re: multi-cast + proxy arp ?
In-Reply-To: <199610280506.VAA07662@rah.star-gate.com> from Amancio Hasty at "Oct 27, 96 09:06:39 pm"
To: hasty@rah.star-gate.com (Amancio Hasty)
Date: Mon, 28 Oct 1996 10:03:44 -0800 (PST)
Cc: freebsd-multimedia@freebsd.org
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Amancio Hasty writes:

> Try to post your mbone related questions to multimedia@freebsd.org
> 
> You can set a tunnel between your host and the mrouted at the other
> end with no problems.
> Just read the manpage on mrouted. Also it will not cost you a subnet.

Thanks Amancio- forgot about the "multimedia" list... this email is
going there instead.

The problem is that the IP address of the client is proxy-arp'ed, and
mrouted doesn't consider the tunnel valid:

   Client                                Server
                                                  |
   +----+                                +----+   | <-- Ethernet (with mbone)
   |    | 207.76.205.X                   |    |   |
   |    +--------------------------------+    +---+ <-- 207.76.205.Y
   |    |       ^^ PPP connection ^^     |    |   | <-- 207.76.205.X (proxy)
   +----+                                +----+   |
                                                  |

Both machines are running 960801-SNAP.

I can't just run an mrouted tunnel from 207.76.205.Y to 207.76.205.X
because mrouted considers that ridiculous, since the IP addresses seem
to be on the same subnet, and it won't do it.

I guess mrouted should take a look at the routing table first before it
makes this determination.

-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com