Re: Unable to ping Multicast group.

The highest IP is the DR and lowest IP is the Querier.

After pinging what does the mroute look like on all the routers?

On Thu, Aug 20, 2009 at 10:02 PM, Nishant Aggarwal <
er.nishantaggarwal_at_gmail.com> wrote:

> Hi All,
>
> Multicast qestion.
>
> Topology:
>
> R6 <---FR----> R3 <-----FR-------> R5
>
> R6 Config:---------------------------------
>
> Int fa0/0
> ip pim sparse-mode
> ip igmp join 224.2.2.2
> int se2/0
> ip pim sparse-mode
>
> ip pim autorp listener
>
> R3 Config:---------------------------------
>
> int lo0
> ip pim sparse-mode
> int se2/0
> ip pim sparse-mode
> int se2/1
> ip pim sparse-mode
>
> ip pim autorp listener
> ip pim send-rp-announce Loopback0 scope 16 group-list 10
> ip pim send-rp-discovery Loopback0 scope 16
> access-list 10 per 224.2.2.2
>
> R5 Config:---------------------------------
>
> int se2/0
> ip pim sparse-mode
>
> ip pim autorp listener
>
> There is no other interface on R5 on which multicast is running. I am
> getting RP mappings on all devices.
>
> 1. When I ping 224.2.2.2 (AT R6) from R5, I get not even a single ping,
> why?
>
> 2. When I configure sparse-mode on Fa0/0 of R5, I get 2 or 3 pings, why?
>
> 3. Also if I go for extended ping (Assume sparse on Fa0/0) by giving
> Interface : Serial2/0 and source ip : Fa0/0 ip, I get continuous ping.
>
> Please guide what is the reason of Qestion 1 and 2.
> Also clarify that the script run by proctor to your grade lab, will
> check my solution with extended ping and pass it OR just check with
> normal ping and fail me??
>
> What is the solution to resolve the issue?
>
> Thanks,
> Nishant Aggarwal.
>
>
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Received on Thu Aug 20 2009 - 22:25:29 ART