From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Jul 22 2006 - 03:07:59 ART
You should try configuring multicast using IP unnumbered and then with
an IP address assigned. This will quickly answer your own question and
you can post your results here.
If a lab needs an OSPF virtual-link and then later on a GRE tunnel is
needed to meet the requirements of a multicast task I wouldn't remove
the virtual link and run OSPF inside of the tunnel unless the lab
somehow implied that OSPF should be run through the tunnel and not over
a virtual-link.
HTH,
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Damion Littlewood
Sent: Friday, July 21, 2006 8:53 AM
To: Cisco certification
Subject: Running multicast over GRE tunnel with OSPF virtual link
Chaps,
If you are running multicast sparse mode via a GRE tunnel do you need to
give the tunnel an IP address or can you use unnumbered?
Also if you had an OSPF virtual link setup between the same routers then
I take it it would be best to break the virtual link and put OSPF over
the GRE too?
Cheers.
This archive was generated by hypermail 2.1.4 : Tue Aug 01 2006 - 07:13:48 ART