From: Chuck Mason (romason0916@xxxxxxxxxxx)
Date: Sat Apr 13 2002 - 03:10:15 GMT-3
I would try a show ip pim rp map
I think your mapping agent needs to reference an
interface as well. Try pointing it to your loopback.
You also you don't have a point-to-multi frame set up
so I don't think you need the nbma mode with the
sparse-dense. Just go with sparse-dense and you should
be fine.
I am trying to learn this multicast stuff as well, so I
may be way off here.
my .02
Chuck
-----Original Message-----
From: nobody@groupstudy.com
[mailto:nobody@groupstudy.com]On Behalf Of
hSzeto Jeff
Sent: Saturday, April 13, 2002 2:13 PM
To: ccielab@groupstudy.com
Subject: Multicast Question, please help!
Hi,
--f0/1--R1--s0/0--------FR-------s0-R2
The serial interfaces are main interfaces
Sparse-dense-mode is used in all interfaces
R1 is the auto-RP and agent
R1's f0/0 has join the group 230.0.0.1
The problem is R2 cannot ping the group 230.0.0.1
Hers's are the relevant config, please tell me what I
am doing wrong.
R1
ip multicast-routing
int s0/0
ip pim nbma-mode
ip pim sparse-dense-mode
int f0/1
ip igmp join-group 230.0.0.1
ip pim sparse-dense-mode
ip pim send-rp-announce Loopback0 scope 15 group-list
80
ip pim send-rp-discovery scope 15
access-list 80 permit 230.0.0.1
R2
ip multicast-routing
int s0
ip pim nbma-mode
ip pim sparse-dense-mode
When I show the mroute table of R1, I saw this:
(*, 230.0.0.1), 00:00:06/00:00:00, RP 140.100.1.1,
flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/1, Forward/Sparse-Dense,
00:00:06/00:02:53
It seems the outgoing interface does not include s0/0.
Thank you in advance.
Jeff
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