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Date: Wed, 17 Jul 1996 16:12:57 -0400 (EDT)
From: Mike Newell <mnewell@kaizen.net>
To: Bill Fenner <fenner@parc.xerox.com>
cc: questions@freebsd.org, multimedia@freebsd.org
Subject: Re:  Multicast routing questions
In-Reply-To: <96Jul17.123819pdt.177482@crevenia.parc.xerox.com>
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On Wed, 17 Jul 1996, Bill Fenner wrote:

> >[1] The first problem is when I bring up mrouted it does not like
> >interface PPP0 and I have to disable it.  This is a long standing problem;
> >even though the PPP interfaces are marked as multicast capable mrouted
> >will not recognize them.
>
> Sorry, I've forgotten the exact failure here.  Could you remind me
> exactly what happens?

You get an error about being unable to establish an address...  Hang on,
lemme give it a run...

  debug level 2
  16:08:38.015 mrouted version 3.8
  16:08:38.040 Getting vifs from kernel interfaces
  16:08:38.041 installing ed1 (206.27.237.17 on subnet 206.27.237.16/28) as vif #0 - rate=0
  16:08:38.041 installing ppp0 (206.27.237.14 on subnet 206.27.237.12/30) as vif #1 - rate=0
  16:08:38.041 Getting vifs from /etc/mrouted.conf
  16:08:38.042 Installing vifs in mrouted...
  16:08:38.042 vif #0, phyint 206.27.237.17
  16:08:38.043 vif #1, phyint 206.27.237.14
  16:08:38.044 warning - can't join group 224.0.0.4 on interface 206.27.237.14: Can't assign requested address
  16:08:38.045 warning - can't join group 224.0.0.2 on interface 206.27.237.14: Can't assign requested address
  16:08:38.047 setsockopt IP_MULTICAST_IF 206.27.237.14: Can't assign requested address

At the time you explained that it had to do with ppp interfaces wanting to
share addresses with the Ethernet and sent a patch to circumvent this.  I
tried the patch to no avail...

> >[2] The second problem is sdr and sd do not see any sessions when run on
> >bigpuppy.
>
> Do you have a network route for net 224?  You probably want to add something
> like

Yeah, I blew it.  I had the wrong subnet mask set on the ppp interface at
the office end.  I had routing problems too; I just assumed it was a RIP
problem and staticed everything.  Pays to NOT set stuff up at 2am when you
started the day at 6 the previous am!! :-)

BTW, where should the 224 route point?  On my system ("badpuppy") it's
pointing at the Ethernet; is that correct?

Thanks!!

Mike