Date: Fri, 23 Feb 2007 11:43:09 +0100 From: Frank Bonnet <f.bonnet@esiee.fr> To: "Daan Vreeken [PA4DAN]" <Danovitsch@vitsch.net> Cc: freebsd-questions@freebsd.org Subject: Re: Transparent redirect to another interface ? Message-ID: <45DEC53D.3000705@esiee.fr> In-Reply-To: <200702221426.30370.Danovitsch@vitsch.net> References: <45DD84C1.70308@esiee.fr> <200702221426.30370.Danovitsch@vitsch.net>
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Daan Vreeken [PA4DAN] wrote: > > "natd" can be used to do this. > > The following example assumes your external interface is called "sk0" and the > seconde interface, connecting to the second server, is called "sk1" : > > # Start natd and tell it to forward pop3 traffic to the second server > natd -n sk0 -redirect_port tcp ip_of_second_server_here:110 110 > > # Add ipfw rule to send incoming pop3 traffic through natd > ipfw add 1000 divert natd tcp from any to me 110 via sk0 > # Add ipfw rule to send responses from second server through natd > ipfw add 1010 divert natd tcp from ip_of_second_server_here 110 to any via > sk0 > > # or just use one ipfw rule : > ipfw add 1000 divert natd all from any to any via sk0 > > But this will send ALL traffic through natd, only sending traffic that needs > to be redirect through it is far more efficient. > > Hope this helps, Good idea but I would prefer (if possible) to use some kind of ethernet trunking . thanks
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