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Date:      Tue, 2 Jan 2001 16:29:45 +1030 (CST)
From:      Benjamin Close <linux@senet.com.au>
To:        <freebsd-questions@FreeBSD.ORG>
Subject:   Transparent proxying with a twist
Message-ID:  <Pine.BSF.4.31.0101021618210.7044-100000@bytes4u.nodomain.yet>
In-Reply-To: <31130710.978408995763.JavaMail.qmailuser@mlapp1.chinaren.com>

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Hi all,
	My internet gateway is setup with a http proxy server. I would
like to force all relayed traffic to use this proxy server without having
to specify proxy settings on the other machines.

The big catch is that the gateway is also a work station. Hence I would
like it also to be forced to use the proxy transparently.

Is this possible on the one machine?

The gateway machine is a secondary proxy hence I know a valid outgoing
address that the machine must be able to access without translation

These are the two things I want to work:

Situation 1 (normal tranparent proxying works here):
   +--internalbox--+- gatewaybox --+
   |               |               |
   httprequest:80 -> gwproxy:8080 -> offsiteproxy:8080 -> inetaddress:80


Situation 2 (the problem):
   +--------- gateway box ---------+
   |                               |
   httprequest:80 -> gwproxy:8080 -> offsiteproxy:8080 -> inetaddress:80

Any suggestions?

Cheers,
--
* Benjamin Close



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