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From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: r0bertz@gentoo.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, kuznet@ms2.inr.ac.ru,
	pekkas@netcore.fi, jmorris@namei.org, yoshfuji@linux-ipv6.org,
	kaber@trash.net
Subject: Re: [PATCH] ipv4: mitigate an integer underflow when comparing tcp timestamps
Date: Sun, 14 Nov 2010 11:55:36 -0800 (PST)	[thread overview]
Message-ID: <20101114.115536.71112799.davem@davemloft.net> (raw)
In-Reply-To: <1289724745.2743.61.camel@edumazet-laptop>

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 14 Nov 2010 09:52:25 +0100

> Really, if you have multiple clients behind a common NAT, you cannot use
> this code at all, since NAT doesnt usually change TCP timestamps.

NAT is %100 incompatible with TW recycling, full stop.

There is no maybe, or maybe not.

If you are behind NAT you must not turn this feature on, ever.

  parent reply	other threads:[~2010-11-14 19:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-14  7:35 [PATCH] ipv4: mitigate an integer underflow when comparing tcp timestamps Zhang Le
2010-11-14  8:52 ` Eric Dumazet
2010-11-14 15:00   ` Zhang Le
2010-11-14 19:55   ` David Miller [this message]
2010-11-25 16:55     ` ZHANG, Le

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