From: David Vasek (dvasek@satx.rr.com)
Date: Sun Apr 02 2006 - 21:27:06 GMT-3
What is the output from show ip pim rp? You should see your RP as the Lo0 on
R1, and you should see it on all 3 routers. You might look at autorp
listener, or ip pim nbma-mode on R1.
-DV
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
george stanza
Sent: Sunday, April 02, 2006 6:30 PM
To: ccielab@groupstudy.com
Subject: Multicast auto-rp question
greetings:
Here is a simple multicast question over a frame-relay. I have a hub-spoke
topology with R1 as a multipoint interface to R2 and R3. R3 has join-group
to 225.225.1.1. On R2, i cannot see the mroute nor ping the
225.225.1.1address, but R1 and R3 can see it.. Assume IGP is working
perfectly on all the links..Any idea whats going wrong ?
On R2:
=====
(*, 224.0.1.39), 00:30:55/stopped, RP 0.0.0.0, OIF count: 0, flags: DP
(25.25.1.1, 224.0.1.39), 00:01:22/00:01:37, OIF count: 0, flags: PT
(*, 224.0.1.40), 00:31:19/stopped, RP 0.0.0.0, OIF count: 1, flags: DCL
(25.25.1.1, 224.0.1.40), 00:30:06/00:02:43, OIF count: 1, flags: LT
R3:
====
(*, 225.225.1.1), 04:42:49/stopped, RP 25.25.1.1, OIF count: 1, flags: SJCLF
(25.25.3.3, 225.225.1.1), 00:01:53/00:01:36, OIF count: 1, flags: LFT
(*, 224.0.1.39), 05:11:54/stopped, RP 0.0.0.0, OIF count: 0, flags: DP
(25.25.1.1, 224.0.1.39), 00:02:54/00:00:05, OIF count: 0, flags: PT
(*, 224.0.1.40), 06:09:37/stopped, RP 0.0.0.0, OIF count: 0, flags: DPL
(25.25.1.1, 224.0.1.40), 05:03:55/00:02:15, OIF count: 0, flags: PLT
The configurations on R1, R2 and R3 are as follows:
R1:
===
int Loopback 0
ip address 25.25.1.1 255.255.255.255
ip pim sparse-mode
!
interface Serial2/1.123 multipoint
ip address 25.7.123.1 255.255.255.0
ip pim sparse-mode
!
access-list 25 permit 225.225.1.1
ip pim send-rp-announce Loopback0 scope 16 group-list 25 ip pim
send-rp-discovery Loopback0 scope 16
R2:
===
interface Loopback 0
ip address 25.25.2.2 255.255.255.255
ip pim sparse-mode
!
interface Serial1
ip address 25.7.123.2 255.255.255.0
ip pim sparse-mode
R3:
===
interface Loopback 0
ip address 25.25.3.3 255.255.255.255
ip pim sparse-mode
!
interface Ethernet2/0
ip address 25.7.28.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 225.225.1.1
!
interface Serial1/0
ip address 25.7.123.3 255.255.255.0
ip pim sparse-mode
!
This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:56 GMT-3