Date: Fri, 25 Jun 2004 11:21:38 -0700 From: "Gustavo A. Baratto" <gbaratto@superb.net> To: freebsd-isp@freebsd.org, Ondra Holecek <bln@bln.no-ip.org> Subject: Re: ipfw and mail Message-ID: <029601c45ae1$41f25b00$6400a8c0@chivas> References: <028201c45ade$5a6b2f70$6400a8c0@chivas>
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Thank you very much... but I think it doesnt work :( umail7# ipfw delete 200 umail7# ipfw add 200 fwd localhost:25 tcp from any to me 2525 keep-state 01400 fwd 127.0.0.1,25 tcp from any to me dst-port 2525 keep-state umail7# telnet 207.228.225.128 2525 Trying 207.228.225.128... telnet: connect to address 207.228.225.128: Connection refused telnet: Unable to connect to remote host I tried the IP as well, instead of localhost... it doesnt work. look the telnet response from port 25: -bash-2.05b$ 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" <bln@bln.no-ip.org> To: <freebsd-isp@freebsd.org> 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" >
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