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From: Emmanuel Duros <Emmanuel.Duros@sophia.inria.fr>
To: freebsd-questions@freebsd.org
Subject: mrouted configuration: overlapping subnets
Reply-to: Emmanuel.Duros@sophia.inria.fr
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I am trying to run mrouted on a freeBSD router (2.2.1-RELEASE)
for experimentation purposes.

The router has several subnets and is configured as follow:

		
   138.96.184.16/28	 ----------       138.96.184.32/28
	-----------------| router |--------------------
		    de1	 ----------  de2
			     |de0
			     |138.96.0.0/16


de0 = 138.96.200.2
de1 = 138.96.184.17
de2 = 138.96.184.33

the /etc/mrouted.conf is as follow:
------
#/etc/mrouted.conf

# do not use interface de0
# only want to forward multicast between de1 and de2

phyint de0 disable
-----

and when I start mrouted I get the following messages:

$ mrouted -d 3

debug level 3
14:59:58.491 mrouted version 3.8a
14:59:58.503 Getting vifs from kernel interfaces
14:59:58.504 installing de0 (138.96.200.2 on subnet 138.96/16) as vif #0 - rate=0
14:59:58.504 warning - ignoring de1, same subnet as de0
14:59:58.505 warning - ignoring de2, same subnet as de0
14:59:58.505 Getting vifs from /etc/mrouted.conf
14:59:58.506 can't forward: no enabled vifs

whereas I specify in the mrouted.conf file that I do not take into
account the de0 interface.

Is there a way to configure mrouted to ignore the interface de0 without
having to change de1 and de2 network numbers?

thankx,
Emmanuel

http://www.inria.fr/rodeo/personnel/eduros/
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|Emmanuel Duros                      | Emmanuel.Duros@sophia.inria.fr|
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