From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Jun 07 2005 - 14:38:08 GMT-3
Hey John,
It looks OK but I think I would do this a bit differently.
First, I'd check the sho ip mroute on R1 and R2 to make sure they see each
other as pim nei.
Assuming they do, then the source addr of the ping doesn't much matter.
but, you want to have the ping continue for a long time - say 500 times or
more.
Then check your mroute tables again and make sure the incoming and outgoing
int's are what you expect them on both R1 and R2.
You can also do a show ip mroute count to see if there's an rpf failure
issue.
HTH, Tim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of John
Matus
Sent: Tuesday, June 07, 2005 1:30 PM
To: ccielab@groupstudy.com
Subject: extended ping question
ok, i've been having a problem going pings from arbitrary
interfaces...basically for multicast. i need help with how to do this
properly. let's say i have a multicast server on a subnet and i want to see
if i can get responds from a router on another subnet, how would i go about
doing the extended ping?
Server-----------e0/0--R1--S0/0-----------------------------s0/0--R2
--e0/0---"igmp join-group 225.1.1.1
1.1.1.5 1.1.1.1 2.1.1.1 2.1.1.2
3.1.1.1
i want to ping from the server, or i guess in practicality, from R1 int
e0/0, to multicast address 225.1.1.1.
r1#ping
Protocol [ip]:
Target IP address: 225.1.1.1
Repeat count [1]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Interface [All]: serial0
Time to live [255]:
Source address: 1.1.1.1
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 1, 100-byte ICMP Echos to 225.1.1.1, timeout is 2 seconds:
Packet sent with a source address of 1.1.1.1
...
is this the correct way to source the ping packets from the subnet that the
server is on?
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