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Date:      Fri, 17 Jul 2009 13:49:10 -0700
From:      Chuck Swiger <cswiger@mac.com>
To:        Peter Much <pmc@citylink.dinoex.sub.org>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Can an app crash from a single TCP packet lost in transmission?
Message-ID:  <7090AD67-2082-4AFA-B130-C20A7DC970FA@mac.com>
In-Reply-To: <KMxxC7.32y@citylink.dinoex.sub.org>
References:  <KMxxC7.32y@citylink.dinoex.sub.org>

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On Jul 17, 2009, at 12:12 PM, Peter Much wrote:
[ ... ]
> One other thing did happen between 03:51 and 03:52 - the DSL
> internet connection did disconnect/reconnect and obtained a new
> IP adress. Afterwards, a script does flush and reload an ipfw table()
> with the new local adresses - and during this process one(!) packet
> of the database session was dropped.

Well, there you go: having your IP change is certainly going to break  
existing network connections; I don't believe there is anything which  
is going to move the existing connection state in a NAT translation  
layer or whatever over to the new IP.  Presumably you can obtain a  
static IP and avoid such issues.

-- 
-Chuck




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