Testing multicast routing using extended ping

From: YourPal (dearprudence28@gmail.com)
Date: Wed Feb 13 2008 - 17:01:45 ARST


Hi Group,

I have the following simple multicast scenario:

R3 (s0/0) -------Frame relay------- (s0/0.134 mp) R4 (Fa0/0)
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Frame relay
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R1 (s0/0/0.134 mp)

Details:

- The interfaces are sparse mode.
- R1 joins multicast group 228.34.28.100 on its Fa0/0 interface. R4 is the
RP for this group.
- RP discovery uses Bootstrap protocol. R3 is the BSR.
- The "ip pim nbma-mode" command is prohibited on R3. To work around, a GRE
tunnel is built between R1 & R4 with PIM sparse mode enabled.

The task is to configure the network so that R1 responds to ICMP echo
requests sent to 228.34.28.100 coming from R4's Fa0/0 interface.

Assuming everything is configured correctly, I'd like to know how to test
it. Should I do extended ping as follows?

R4#pi
Protocol [ip]:
Target IP address: 228.34.28.100
Repeat count [1]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Interface [All]: <Which interface??>
Time to live [255]:
Source address: <R4's Fa0/0 ip address>
Type of service [0]:
.
.

What interface should I specify?

Or should I just do "pi 228.34.28.100 so fa0/0"? Any difference?

Appreciate any help.

Thank you.

BR,
Emil



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