Date: Fri, 25 Jun 2004 20:10:30 +0200 From: Ondra Holecek <bln@bln.no-ip.org> To: freebsd-isp@freebsd.org Subject: Re: ipfw and mail Message-ID: <200406252009.07593.> In-Reply-To: <028201c45ade$5a6b2f70$6400a8c0@chivas> References: <028201c45ade$5a6b2f70$6400a8c0@chivas>
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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"
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