Re: multicast PIM Dense problem in F/R

From: elpingu (elping@xxxxxxxxxx)
Date: Wed May 15 2002 - 23:36:13 GMT-3

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if you will be using sparse mode on any router. on the router using
sparse mode
you must tell it who is the RP.

example
routerb
ip pim rp-address x.x.x.x

Ali Fahmi wrote:

> Hi all,
> I have a problem with multicast configuration,
> I have a topology like this, (WAN is Frame relay)
>
> RtrA (s0/0.1) ------------RtrB
> |
> |
> (S1/0)
> RtrC
> (E0)
> |
> RtrD
>
> My Problem is,
> if I used PIM Dense-mode,I can ping 239.1.1.1 from RtrA and
> got reply from RtrD, but I can not ping from RtrB
> if I used PIM Sparse mode and RtrA is set to become RP , my
> problem is solved,
> is there any mistake in my config below ?
>
> RtrA
>
> ip multicast-routing
>
> interface s0/0.1
> ip pim dense-mode
>
> RtrB
> ip multicast-routing
>
> interface S0
> ip pim dense-mode
>
> RtrC
> ip multicast-routing
>
> interface s1/0
> ip pim dense-mode
>
> interface E0
> ip pim dense-mode
>
> RtrD
> ip multicast-routing
>
> interface E0
> ip igmp join-group 239.1.1.1
>
> thanks,
>
> Ali

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