netdev - Re: [Bugme-new] [Bug 8338] New: NAT of TCP connections broken

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Date:	Mon, 16 Apr 2007 13:48:28 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	netdev@...r.kernel.org
Cc:	"bugme-daemon@...nel-bugs.osdl.org" 
	<bugme-daemon@...zilla.kernel.org>, ernisv@...il.com
Subject: Re: [Bugme-new] [Bug 8338] New: NAT of TCP connections broken

> On Mon, 16 Apr 2007 13:35:47 -0700 bugme-daemon@...zilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=8338
> 
>            Summary: NAT of TCP connections broken
>     Kernel Version: 2.6.20.7
>             Status: NEW
>           Severity: high
>              Owner: networking_netfilter-iptables@...nel-bugs.osdl.org
>          Submitter: ernisv@...il.com
> 
> 
> Most recent kernel where this bug did *NOT* occur: 2.6.18
> Distribution: Debian
> Hardware Environment: amd64 4200x2
> Software Environment:
> Problem Description:
> I'm using my debian box for sharing internet connection. After update to 
> debian's 2.6.20 kernel (and adjusting new kernel configuration for NAT) NAT of 
> TCP connections stoped working, while ICMP and UDP is working (ping, traceroute 
> and DNS). When trying to open web page on a PC from my LAN (tried with linux 
> and winxp), it sends the request but is unable to receive correct response from 
> any site. On the router PC www works ok. 
> 
> I tried both new "Independent connection tracking" as well as "Dependent 
> (obsolete) connection tracking" options with no luck.
> 
> tcp_window_scaling setting seems to have no effect.
> 
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