filtering internal IP addresses

 I am currently running a squid proxy ( Version 1.0.beta17) as a
firewall and have recently found out that my configuration is passing
on internal IP addresses in the HTTP_FORWARDED field. I was able to
see this from the following url
http://www.chem.swin.edu.au/test/environ.shtml

My question is what field in the configuration file do I need to
change in order to prevent this? Currently I have just modified the
line in http.c that prints this portion of the request.

  Thanks for your time and help,

                       tmk
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Tom M. Kroeger Pray for wind
Graduate Student, UC Santa Cruz \ Pray for waves
e-mail: tmk@cs.ucsc.edu |\ and Pray it's your day off!
http://www.cse.ucsc.edu/~tmk |~\
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Received on Mon Sep 09 1996 - 10:48:52 MDT