Re: X-Forwarded-For: illegal addresses?

From: Duane Wessels <>
Date: Tue, 24 Mar 1998 10:48:40 -0700

Jan Simek writes:

>I did a little experiment with X-Forwarded-For header (3 servers, 2
>months) and found out an interesting thing:
>5-20 % of the headers set are from the reserved illegal space (10.*.*.*,
>192.168.*.* and 172.....). I guess that people running Squids for such
>LANs should be aware of this and probably turn setting the
>HTTP_X_FORWARDED_FOR header off in the configuration file...

Why is that? I don't see what the harm can be...?

Duane W.
Received on Tue Mar 24 1998 - 09:52:38 MST

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