NAT server proxy settingon outside interface

HDWorx · 02-23-2008, 04:50 PM

Hi all,

I am running a NAT server to map a range of my inside IP addresses to one outside IP address. To access the web which is outside,I must go through a proxy server.

At the moment, I have to put proxy settings for each client behind the nat server on my local LAN. How can i configure the NAT server to use default proxy settings of my ISP without hacing to configure any proxy settings on all clients inside or behind the NAT server.

thanks

acid_kewpie · 02-23-2008, 05:00 PM

helps if you tell us what this nat server actually is, but unless you're using a transparent proxy under squid or equivalent then you can't do that to my knowledge. i guess you're actually looking for a transparent proxy configuration, which google can easily provide you details about.

HDWorx · 02-23-2008, 05:10 PM

Thank acid_kewpie .. transparent proxy is exactly what im looking for. i found this link that explains how to acoomplish this:
http://www.faqs.org/docs/Linux-mini/...tProxy.html#s6
unfortunately, you cannot do authentication with transparent proxy.
So if i have authentication against my ISP's proxy, i cannot allow transparent access to my clients?

acid_kewpie · 02-23-2008, 05:15 PM

well you actually have two stages to your requirements. 1) intercept traffic and make it you *your* proxy, and 2) make your proxy go upstream to a parent proxy. not the 2nd part is where your auth comes in, and that part is *not* transparent at all, and i'm sure squid 2.6+ can handle parent authentication with basic auth at the minimum.

acid_kewpie · 02-23-2008, 05:17 PM

http://www.visolve.com/squid/squid26...php#cache_peer

HDWorx · 02-23-2008, 05:26 PM

Thanks acid_kewpie i will check it out and repost asap!