IPfilter
[Top] [All Lists]

Re: ipf 4.1.13 + NAT + FTP proxy = window scaling problem

To: Darren Reed <darrenr@reed.wattle.id.au>
Subject: Re: ipf 4.1.13 + NAT + FTP proxy = window scaling problem
From: Pekka Savola <pekkas@netcore.fi>
Date: Wed, 20 Dec 2006 15:57:30 +0200 (EET)
Cc: ipfilter@coombs.anu.edu.au
Delivered-to: sp-com-lists@consult.net
Delivered-to: ipfilter-list@securepoint.com
In-reply-to: <4589358E.3040703@reed.wattle.id.au>
References: <Pine.LNX.4.64.0612192052410.3711@netcore.fi> <458873B8.5060302@reed.wattle.id.au> <Pine.LNX.4.64.0612200848360.18434@netcore.fi> <4589358E.3040703@reed.wattle.id.au>
Sender: owner-ipfilter@coombs.anu.edu.au
On Thu, 21 Dec 2006, Darren Reed wrote:
ok, please apply the attach patch so I can collect some information from
the kernel.

The output is like follows (there are no such messages if FTP proxy is disabled):

fdata:maxend 1129616061 end 1129616337
fdata:end 1129672809 seq 1129614889
fdata:winflags 4 winscale 0
tdata:winflags 0 winscale 0
ack 2182360656 ackskew 0 win 65160 << 0 maxwin 8192
fdata:maxend 1129616061 end 1129617785
fdata:end 1129672809 seq 1129616337
fdata:winflags 4 winscale 0
tdata:winflags 0 winscale 0
ack 2182360656 ackskew 0 win 65160 << 0 maxwin 8192
fdata:maxend 1129616061 end 1129619233
fdata:end 1129672809 seq 1129617785
fdata:winflags 4 winscale 0
tdata:winflags 0 winscale 0
ack 2182360656 ackskew 0 win 65160 << 0 maxwin 8192
fdata:maxend 1129616061 end 1129620681
fdata:end 1129672809 seq 1129619233
fdata:winflags 4 winscale 0
tdata:winflags 0 winscale 0
ack 2182360656 ackskew 0 win 65160 << 0 maxwin 8192
fdata:maxend 1129616061 end 1129622129
fdata:end 1129672809 seq 1129620681
fdata:winflags 4 winscale 0
tdata:winflags 0 winscale 0
ack 2182360656 ackskew 0 win 65160 << 0 maxwin 8192
....

HTH,

--
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

<Prev in Thread] Current Thread [Next in Thread>