why not just route all port 80 destined packets to the proxy? you can do this on the gateway. if you have a router, route all port 80 to the proxy by setting the next hop of these packets to the gateway.

Junix Gaspar wrote:


On 3/27/07, *Ariz Jacinto* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    Hi Junix,

    what software / rules did you use to drop those packets?


Actually, I am using ISA 2004, In one of the firewall rules of ISA , you right click on and there goes configure HTTP and on the header TAB, I just put block all headers with "X-Forwarded-For", "Via" and http 1.0 (although I dont get the reason why this last one should be blocked), out of curiousity, I just blocked it as well.

Hayyy, kainis.
But I configure a squid proxy server to test a "proxy" connection and even with that header blocking, it still works. Since I dont know much in using ethereal and/or other pocket sniffer that reads and analyze such HEADER, I'm kinda stuck and left thinking that maybe squid doesn't use put this X-Forwarded-For for its clients request to the parent proxy.

hayyy more googling I guess.

I will try this Header blocking in Squid. Hopefully I will it will yield a different result.

ps, I am chaining ISA, dansguardian and squid and it works like a charm except for that rugue proxy being used against me. hayyy


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