From: xprtofnet (xprtofnet@yahoo.com)
Date: Sun Apr 02 2006 - 21:41:56 GMT-3
do deb ip mpacket to see if you are getting rfp error.
if yes then you may need static mroutes.
also, for auto-rp you need sparse-dense unless you are
using auto-rp listener on each router.
m2c
--- george stanza <cert2006@gmail.com> wrote:
> 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