From owner-freebsd-isp@FreeBSD.ORG Fri Jun 25 18:24:26 2004 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BF59016A4CE for ; Fri, 25 Jun 2004 18:24:26 +0000 (GMT) Received: from pd5mo1so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9E1B243D45 for ; Fri, 25 Jun 2004 18:24:26 +0000 (GMT) (envelope-from gbaratto@superb.net) Received: from pd2mr6so.prod.shaw.ca (pd2mr6so-qfe3.prod.shaw.ca [10.0.141.9]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003)) with ESMTP id <0HZV00C6ON1BN7@l-daemon> for freebsd-isp@freebsd.org; Fri, 25 Jun 2004 12:22:23 -0600 (MDT) Received: from pn2ml4so.prod.shaw.ca ([10.0.121.148]) by pd2mr6so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0HZV00G5AN1BGG50@pd2mr6so.prod.shaw.ca> for freebsd-isp@freebsd.org; Fri, 25 Jun 2004 12:22:23 -0600 (MDT) Received: from chivas (S01060080c8118809.vc.shawcable.net [24.85.89.252]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003)) with SMTP id <0HZV00E4AN1AR8@l-daemon> for freebsd-isp@freebsd.org; Fri, 25 Jun 2004 12:22:23 -0600 (MDT) Date: Fri, 25 Jun 2004 11:21:38 -0700 From: "Gustavo A. Baratto" To: freebsd-isp@freebsd.org, Ondra Holecek Message-id: <029601c45ae1$41f25b00$6400a8c0@chivas> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Mailer: Microsoft Outlook Express 6.00.2800.1409 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal References: <028201c45ade$5a6b2f70$6400a8c0@chivas> Subject: Re: ipfw and mail X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Jun 2004 18:24:26 -0000 Thank you very much... but I think it doesnt work :( umail7# ipfw delete 200 umail7# ipfw add 200 fwd localhost:25 tcp from any to me 2525 keep-state 01400 fwd 127.0.0.1,25 tcp from any to me dst-port 2525 keep-state umail7# telnet 207.228.225.128 2525 Trying 207.228.225.128... telnet: connect to address 207.228.225.128: Connection refused telnet: Unable to connect to remote host I tried the IP as well, instead of localhost... it doesnt work. look the telnet response from port 25: -bash-2.05b$ telnet 207.228.225.128 25 Trying 207.228.225.128... Connected to smtp3.superb.net. Escape character is '^]'. 220 smtp3.superb.net ESMTP thanks :) ----- Original Message ----- From: "Ondra Holecek" To: Sent: Friday, June 25, 2004 11:10 AM Subject: Re: ipfw and mail > On Friday 25 June 2004 20:00, Gustavo A. Baratto wrote: > > Hello guys, > > > > some of our users' ISPs don't allow them to use port 25, so they cannot use > > out mail server. > > > > I want to open a new port (2525) and forward all packets from 2525 to 25 > > so, they can use mail. > > > > I tried this in IPFW: > > 0100 119649 44772439 allow tcp from any to me dst-port 25 keep-state > > 0200 0 0 divert 25 ip from any to me dst-port 2525 keep-state > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > this line does something other > try to use this: > ipfw delete 200 > ipfw add 200 fwd localhost:25 tcp from any to me 2525 keep-state > > > > 0300 103075 35531648 allow ip from me to any keep-state > > 0400 60 4530 deny log ip from any to any > > > > > > If I telnet directly to port 25, I can get the prompt, but if I telnet to > > port 2525, I get a connection refused. > > > > What should I do in ipfw to forward port 2525 to port 25 tranparently? > > > > Thanks > > _______________________________________________ > > freebsd-isp@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-isp > > To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" > > _______________________________________________ > freebsd-isp@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-isp > To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" >