From: Ken Matwie (Ken.Matwie@gov.ab.ca)
Date: Thu Feb 20 2003 - 13:43:35 GMT-3
If you want the to - from information you will want to see the echo request
and echo reply packets. You can use the ACL to filter your traffic and then
debug icmp to see exactly what is being sent and received. Another option..
-----Original Message-----
From: Lileikis, Gary [mailto:gary.lileikis@unisys.com]
Sent: Thursday, February 20, 2003 9:27 AM
To: Sanfilippo, Ted; 'ccielab@groupstudy.com'
Subject: RE: Monitoring ICMP
Could this be what you are looking for?
R1
Show run
ip access-list extended icmplist
permit icmp any host 150.50.100.4 log
permit icmp any host 150.50.100.6 log
r1#show access-lists
Extended IP access list icmplist
permit icmp any host 150.50.100.4 log (5 matches)
permit icmp any host 150.50.100.6 log (20 matches)
Cheers...Gary
-----Original Message-----
From: Sanfilippo, Ted [mailto:Ted.Sanfilippo@PaeTec.com]
Sent: Thursday, February 20, 2003 9:43 AM
To: 'ccielab@groupstudy.com'
Subject: Monitoring ICMP
I had a question in a lab scenario that asked to monitor ICMP traffic and be
able to report on how many packets and where they are going. The access-list
needs to be named ICMPLIST. This was on a router that was a multipoint
connected to two other routers ( R1 in the diagram).
R1 -------------- R2
\
\
\
\
R3
Any idea on what I can use to monitor this and obtain the information
stated?
Ted Sanfilippo
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