From: Jason Sinclair (sinclairj@xxxxxxxxxxxxxxx)
Date: Thu Apr 04 2002 - 20:27:47 GMT-3
All,
I have the following topology:
Router1---------------------router2
|
|
|
|
router3
The links are frame relay and I have set the following configs:
Router1
Ip multicast-routing
Ip pim send-rp-discovery s 0 sc 255
Int s0
Ip pim nbma-mode
Ip pim sparse-dense-mode
Int lo0
Ip pim sparse-dense-mode
Ip igmp join-group 225.2.2.2
Router2
Ip multicast-routing
Ip pim send-rp-announce s 0 sc 255
Int s0
Ip pim nbma-mode
Ip pim sparse-dense-mode
Router3
Ip multicast-routing
Int s0
Ip pim nbma-mode
Ip pim sparse-dense-mode
All the associated routing is their from a unicast perspective. My issue is
that on R1 I can ping the 225.2.2.2 address BUT NOT from R2. However the RP
mappings are all fine as below. When I move the C-RP to (the
send-rp-announce) to R1 it is OK. Any ideas as I have my lab on Monday.
R3#show ip pim rp
Group: 225.2.2.2, RP: 155.1.123.2, v2, v1, uptime 00:00:07, expires 00:02:52
r3#show ip pim rp map
PIM Group-to-RP Mappings
Group(s) 224.0.0.0/4
RP 155.1.123.2 (?), v2v1
Info source: 155.1.123.1 (?), via Auto-RP
Uptime: 00:13:47, expires: 00:02:03
r3#show ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned
R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT
X - Proxy Join Timer Running
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.0.1.39), 00:19:08/00:02:50, RP 0.0.0.0, flags: DJC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0, Forward/Sparse-Dense, 00:19:08/00:00:00
(*, 224.0.1.40), 00:19:19/00:00:00, RP 0.0.0.0, flags: DJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0, Forward/Sparse-Dense, 00:19:20/00:00:00
(155.1.123.1, 224.0.1.40), 00:18:46/00:02:04, flags: PCLT
Incoming interface: Serial0, RPF nbr 0.0.0.0
Outgoing interface list: Null
(*, 225.2.2.2), 00:03:36/00:02:23, RP 155.1.123.2, flags: SP
Incoming interface: Serial0, RPF nbr 155.1.123.2
Outgoing interface list: Null
Jason Sinclair
Manager, Network Support Group
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
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