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From: Octavian Purdila <opurdila@ixiacom.com>
To: netdev@vger.kernel.org
Cc: Stephen Hemminger <shemminger@vyatta.com>,
	Bill Fink <billfink@mindspring.com>,
	Eric Dumazet <dada1@cosmosbay.com>
Subject: Re: ports beeing reused too fast
Date: Tue, 12 May 2009 15:32:57 +0300	[thread overview]
Message-ID: <200905121532.57477.opurdila@ixiacom.com> (raw)
In-Reply-To: <20090509154515.28251a48@nehalam>


> > > >> Any strong reason why a firewall would drop a SYN because ports were
> > > >> used in a previous session ?
> > > >
> > > > We don't know why the firewall (Cisco FWSM) is dropping the packets,
> > > > may be a bug, limitation or miss-configuration. We are trying to
> > > > track this down with the firewall vendor.
> > >

Interestingly, we are seeing the same behavior with another high-end firewall 
(Juniper SRX). 

As mentioned previously, this can not be caused by the TW state, because the 
connections are getting closed on the server side.

Thanks,
tavi


  reply	other threads:[~2009-05-12 12:34 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 20:11 ports beeing reused too fast Octavian Purdila
2009-05-09  6:58 ` Eric Dumazet
2009-05-09 13:11   ` Octavian Purdila
2009-05-09 15:17     ` Eric Dumazet
2009-05-09 16:16       ` Eric Dumazet
2009-05-09 19:31       ` Bill Fink
2009-05-09 19:41         ` Octavian Purdila
2009-05-09 22:45         ` Stephen Hemminger
2009-05-12 12:32           ` Octavian Purdila [this message]
2009-05-12 15:11             ` Stephen Hemminger
2009-05-12 15:52               ` Octavian Purdila
2009-05-14 20:29                 ` Stephen Hemminger

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