Firewall-1

Re: [FW-1] Help needed with Checkpoint Firewall and Proxy Server

Subject: Re: [FW-1] Help needed with Checkpoint Firewall and Proxy Server
From: Reinhard Stich <r.stich AT INTERNET-SECURITY DOT AT>
To: FW-1-MAILINGLIST AT AMADEUS.US.CHECKPOINT DOT COM
Date: Wed, 26 Jul 2006 22:22:28 +0200
hi,

this is possible with the predefined http_mapped service - in the advanced part of the service-definition you can enter the proxy-ip.

cheers
reinhard

At 22:05 26.07.2006, you wrote:
Guys,

  I did not come up with this design but I have to support this
so here we go.  Keep in mind that the customer wants to keep
everything as is and wanted me to make this work.

  Scenario:
  OS:     Nokia IPSO 3.7.1 build 024
Checkpoint:  NG with AI R55w and HFA_04
Internal network: 10.1.1.0/24
FW internal IP:  10.1.1.1
External IP:  65.201.191.200
Proxy Server:  10.1.1.2/24
  Internal network 10.1.1.0/24 is "hide" NAT when
going out to the Internet and everything is working fine.
All the Internal hosts have the firewall internal IP
(10.1.1.1) as the default gateway.

  Problem:
The customer wants to http/https traffics to go through
the proxy server.  However, they do NOT want to re-configure
the browser (Internet Explorer or Firefox) to point to the
proxy server for proxy connection.  What they want is to have
the firewall to re-direct the http/https traffics to the
proxy server and let the proxy do the work.
  Basically the traffic flow would look like this:
  host 10.1.1.15 browes http://www.google.com
http traffic will hit the firewall.... Firewall will re-direct
this traffic to the proxy server (10.1.1.2).  Proxy will
get the content from http://www.google.com and relay this
information back to host 10.1.1.15

  Is this possible with Checkpoint firewall?  Can someone show
me how?

  Just a note, I can do this with linux firewall via iptables.
  TIA

  cisco4ng


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--
Reinhard Stich          r.stich AT internet-security DOT at
Internet Security AG,      1150 Wien, Johnstrasse 29
Tel: +43 1 3709440 RS784-RIPE Fax: +43 1 3709440-333
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