From: Moffat, Ed (EMoffat@fsci.com)
Date: Mon Apr 05 2004 - 01:42:03 GMT-3
You will need to turn off fast-switching and cef-switching on the interface
of your intermediary router because unless the packets are processed
switched you will not see the output of the debug once they are in the route
cache.
-Ed-
-----Original Message-----
From: Leonard Lu [mailto:llu_ccie@yahoo.com]
Sent: Sunday, April 04, 2004 11:40 AM
To: ccielab@groupstudy.com
Subject: debug ip packet detail question
Can anyone help me for the following debug question. Thanks.
I want to debug the specific telnet packets from one host to another host.
So on the router between these two hosts, I created the following access
list
Router(config)#access-list 100 permit tcp host 148.16.11.1 host 148.16.22.1
eq telnet Router(config)#access-list 100 permit tcp host 148.16.22.1 host
148.16.11.1 established
Then in the router enable mode, I turn on the debug
Router#debug ip packet detail 100
I then telnet from one host to the other one. But the router only displayed
one packet information, and then displays nothing. Even after I terminated
the telnet and start the telnet again several times, the router won't show
any additional packet information.
I used show logging command to see the buffer, and there is also only one
packet information there. I did show ip access-list command and only see one
match for the access-list 100.
Does it mean that this command only work for one packet, or I have done
something wrong here?
Thank you very much for your help.
--Leonard Lu
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