Unable to ping Multicast group.

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.

Blogs and organic groups at http://www.ccie.net
Received on Fri Aug 21 2009 - 07:32:15 ART