From: Mukom TAMON (mukom.tamon@gmail.com)
Date: Tue Mar 03 2009 - 12:23:08 ARST
Dear all,
I have been completely beaten by a scenario. Given 3 routers,
Spoke1===========Hub=============Spoke2
Each of s0/0 is connected to the frame relay cloud, ospf routes everything
in area 0.
I correctly mapped all L2-L3 mappings on all routers.
My problem is this .... Is it possible to have a multicast source on any of
the spokes with a receiver on the other?
I have tried configuring this but can't get a spoke source to actually
function.
My investigation (show ip mroute and debug ip mpacket) on the hub shows that
Outgoing Interface List [OIL] is empty for a source on the spoke ... which
makes sense to me; without any physical spoke-to-spoke connection, a
multicast packet comes into Hub via s0/0 and I don't think multicast will
allow it go back out s0/0
Apart from using say point-to-point interfaces, is there a way to make
multicast work in the above scenario? btw, I believe I configured multicast
properly ... if I do a multicast ping from Hub, receivers on either spoke
respond. Any insights? suggestions [Lab 9 in CCIE Practical Studies vol II
also has something like this]. I appreciate any help
M.A. TAMON
B.Eng, CCNP, CCNA
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