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Date: Fri, 14 Dec 2007 14:35:40 +0400
From: rihad <rihad@mail.ru>
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Subject: replacing ipfw rule
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Any way to atomically replace an ipfw rule?

i.e. do away without delete:
ipfw add 100 pipe 1 ip from aaa to bbb
ipfw delete 100
ipfw add 100 pipe 2 ip from aaa to bbb

This results in 2 rules being added:
ipfw add 100 pipe 1 ip from aaa to bbb
ipfw add 100 pipe 2 ip from aaa to bbb

BTW what happens when a pipe is deleted? Is the data queued but not yet 
sent lost or is it still sent?

Thanks.