nanog mailing list archives

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


From: "Scott Morris" <swm () emanon com>
Date: Tue, 6 Jan 2009 08:08:54 -0500

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 () gmail com] 
Sent: Tuesday, January 06, 2009 6:26 AM
To: nanog () 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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