? how cisco router handle the out-of-order ICMP echo-reply packets

Scott Morris swm at emanon.com
Tue Jan 6 07:08:54 CST 2009


There aren't sequence numbers with ICMP.  And the timeout value is
watched/triggered before the next ICMP is sent, so there shouldn't really be
any ordering problem/interpretation anyway.

HTH,

Scott

-----Original Message-----
From: Zhao Ping [mailto:pzhao.cn at gmail.com] 
Sent: Tuesday, January 06, 2009 6:26 AM
To: nanog at merit.edu
Subject: ? how cisco router handle the out-of-order ICMP echo-reply packets

Hi,

Does someone happen to know how the Cisco IOS  handle the out-of-order 
ICMP echo-reply packets? print it as success  or lose?

Thanks,

Zhao Ping







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