From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Thu Mar 11 2004 - 04:23:28 GMT-3
The default is to send one packet when pinging a multicast address. When
you did the extended ping, you said to send three ping packets.
If you want to know if it was successfully or not, remove the join command
and look at the output of the pings.
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ahmed Mustafa
Sent: Wednesday, March 10, 2004 10:47 PM
To: ccielab@groupstudy.com
Subject: Multicasting
Can someone explain this.
I have configured a join-igmp group on ethernet interface, and now trying to
ping this from the RP itself. First I did the regular ping, and then
extended
ping. When I do the regular ping, I get the 0 reply, but went I do the
extending ping I get a respone 0, 1, 2.
Are my pings successfull?
Kindly Explain please.
Thanks,
Ahmed
----------------------------------------------------------------------------
-
---Rack1R2#ping 225.25.25.25
Type escape sequence to abort. Sending 1, 100-byte ICMP Echos to 225.25.25.25, timeout is 2 seconds:
Reply to request 0 from 141.1.123.3, 88 ms Reply to request 0 from 141.1.123.3, 132 ms Reply to request 0 from 141.1.123.3, 100 ms
Rack1R2#ping Protocol [ip]: Target IP address: 225.25.25.25 Repeat count [1]: 3 Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Interface [All]: Time to live [255]: Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 3, 100-byte ICMP Echos to 225.25.25.25, timeout is 2 seconds:
Reply to request 0 from 141.1.123.3, 72 ms Reply to request 0 from 141.1.123.3, 124 ms Reply to request 0 from 141.1.123.3, 84 ms Reply to request 1 from 141.1.123.3, 84 ms Reply to request 1 from 141.1.123.3, 100 ms Reply to request 2 from 141.1.123.3, 72 ms Reply to request 2 from 141.1.123.3, 108 ms Rack1R2#
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