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From: Joshua Goodall <joshua@myinternet.com.au>
To: Fabiano Reis <silos.reis@ig.com.br>
Cc: netfilter@lists.netfilter.org
Subject: Re: differences between win and unix tcp clients.
Date: Wed, 17 Mar 2004 02:07:46 +1100	[thread overview]
Message-ID: <20040316150746.GA8506@myinternet.com.au> (raw)
In-Reply-To: <024b01c40b4f$e3341620$3f32a8c0@ds.ig.com.br>

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(netfilter-devel removed from CC list)

On Tue, Mar 16, 2004 at 09:12:01AM -0300, Fabiano Reis wrote:
> Conclusion: I think this was because the Windows implementation of TCP detects something different on this connection, maybe it detects in some way that there is a filter on the server side and this is why the time for the error message take so long to appear.

Basically yes.  I wouldn't say that Windows "detects something
different".   I would say that the Windows client isn't properly
interpretating the ICMP Port Unreachable message.

> Am I right? Is there a workaround for this problem? I need to make windows think that the server is really "down" and that is why i?m writting to you people.

try extending your REJECT option:

-j REJECT --reject-with tcp-reset

which should give you the desired result, in exchange for being
a crude pseudo-rejection.

Joshua.

-- 
Joshua Goodall <joshua@myinternet.com.au>
Solutions Architect / Principal Security Architect
myinternet Limited.

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  parent reply	other threads:[~2004-03-16 15:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-16 12:12 differences between win and unix tcp clients Fabiano Reis
2004-03-16 12:41 ` Chris Brenton
2004-03-16 13:30   ` Fabiano Reis
2004-03-16 15:07 ` Joshua Goodall [this message]
2004-03-17 21:13   ` Nuutti Kotivuori
2004-03-16 16:20 ` netfilter-devel
2004-03-17  3:31   ` Nuutti Kotivuori
2004-03-17  7:19 ` Henrik Nordstrom

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