From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Sun Mar 26 2006 - 18:31:32 GMT-3
you might need to configure an RP on your hub router
PIM sparce mode with static RP or BSR will help the situation or PIM
sparce-dense mode with auto-RP
IMO no tunnels are needed here unless it is explicitly required
A.
----- Original Message -----
From: "david robin" <robindavi@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Sunday, March 26, 2006 2:32 PM
Subject: frame relay hub and spoke multicast
> dear all,
> I want to very something with ip multicast, if we have a frame-relay
> connection, R1 is the hub connected wih a multipoint interface to r2 and
> r3
> the spokes, the qusetion is if we had a multicast group on r2 fast
> ethernet
> ( using ip igmp join), the fact that I cant ping this multicast group from
> r3, does i have to configure tunnels ( 1 tunnel between r1 and r2 and 1
> tunnel between r1 and r3) in order to make the multicast packets flow ??
>
> Also there is another question in case i run pim sparse-dense as r1 is the
> RR the same problem will occur and does i have to configure tunnel too ???
>
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