From: Brent Foster (jbrentfoster@yahoo.com)
Date: Tue Sep 12 2006 - 09:40:20 ART
In this configuration, I don't think you need
sparse-dense since R5 is the hub. Therefore you do
not need to go more than one hop to get to the RP.
I agree that the static RP entry on R4 should not be
necessary.
Finally, I would make sure you are running PIM on the
Loopback0 of R5 and that this address is being
advertised via the IGP so that R2 and R4 can ping this
address.
Verify proper RP mapping with the "show ip pim rp
mapping" command.
--- Angelo De Guzman
<a.deguzman@wesolv.ph.fujitsu.com> wrote:
> Hi nisha,
> I'm not a multicast expert. Cisco's recommendation
> when you run Auto-RP is
> that you must be in sparse-dense-mode. Also
> dynamically learned RP are
> preferred over static RP announcement. So I dont see
> the need for the ip pim
> rp-address 10.10.125.5 (unless your scenario calls
> for it). If you will stick
> to your config. (Sparse-mode). You will need
> something that allows auto-rp
> packets across sparse-mode interface. After you do
> that. Do sh ip pim rp
> mapping. Then after that you'll be okay (I think).
>
> I'm not 100% sure about this but give it a try.
>
> Angelo
>
> nisha rani (9/12/06 3:14 PM):
> >
> >Hi all,
> >
> >configuring multicast on r2, r4 and r5. R5 is my
> hub router in frame relay
> >topolgy. I have configured r5 as a rp and mapping
> agent. and join-group is
> >on r4.
> >I am not able to ping from r2 to 228.255.10.10,
> However my unicast routing
> >is working fine. Please point me into right
> direction.
> >
> >thanks
> >
> >Configuration is as follows -
> >
> >R4
> >ip multicast-routing
> >int e0/0
> >ip pim sparse-mode
> >
> >int se0/0
> >ip pim sparse-mode
> >
> >ip igmp-join group 228.255.10.10
> >ip igmp-join group 228.255.20.20
> >
> >ip pim rp-address 10.10.125.5
> >
> >
> >R5
> >ip multicast-routing
> >int e0/0
> >ip pim sparse-mode
> >
> >int se0/0.125
> >ip address 10.10.125.5 255.255.255.0
> >ip pim sparse-mode
> >
> >int se0/0.45
> >ip pim sparse-mode
> >
> >int lo0
> >ip pim sparse-mode
> >
> >ip pim send-rp-announce lo0 scope 16
> >ip pim send-rp-discovery lo0 scope 16
> >
> >ip pim rp-address 10.10.125.5
> >
> >r2
> >int se0/0
> >ip pim sparse-mode
> >
> >int e0/0
> >ip pim sparse-mode
> >
> >ip pim rp-address 10.10.125.5
> >
>
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This archive was generated by hypermail 2.1.4 : Sun Oct 01 2006 - 16:55:40 ART