From mboxrd@z Thu Jan 1 00:00:00 1970 From: Metal Gear Subject: Fwd: proxy+port redirection behaviour Date: Thu, 28 Apr 2005 15:12:15 +0600 Message-ID: <110c7844050428021276a634f4@mail.gmail.com> References: <110c784405042103362108ebad@mail.gmail.com> <4267C082.7030809@riverviewtech.net> <110c784405042704552296d4f5@mail.gmail.com> <42706029.2090908@riverviewtech.net> <110c784405042802112d30e98f@mail.gmail.com> Reply-To: Metal Gear Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <110c784405042802112d30e98f@mail.gmail.com> Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii" To: netfilter@lists.netfilter.org Hi, I (for some unknown reason) was thinking that the firewall that your client= s=20 > used was a Linux box which had a 2nd hardware firewall connecting it to t= he=20 > net. As such I did not take in to account that the host that you would be= =20 > running this rule on might not already be set up to >=20 forward traffic. My clients gateway is set to squid proxy and the squid proxy 's gateway is= =20 set to the firewall. I want to run the rules on my squid box and there are= =20 no other rules on it. Except the ones that i send in my previous mail. As such, do you have any other firewall rules set up or policies on chains= =20 > set to DROP traffic? Also you will need to make sure that=20 > /proc/sys/net/ipv4/ip_forward is set to 1 thus configuring your server to= =20 > forward traffic. You will have to forward traffic as traffic is coming in= to=20 > your server and then being redirected / forwarded to another server. This= =20 > could possibly explain the ""filtering that nmap is reporting as I'm not= =20 > sure what type of error will be generated by trying to forward and then= =20 > being DROPed. I expect that the traffic will just look like there is=20 > something in the way, not a reject or no route to host or any thing like= =20 > that. Yes no extra DROP rules My squid box has only one interface so there is any= =20 neeed of enabling forwarding on it. ?? Anyways i enable forwarding but stil= l=20 it does not works. Thanks