Date: Fri, 03 Aug 2007 13:20:38 -0700 From: Julian Elischer <julian@elischer.org> To: Rudy Setiawan <rudal999@gmail.com> Cc: freebsd-ipfw@freebsd.org Subject: Re: redirect traffic based on destination port to another interface Message-ID: <46B38E16.3030001@elischer.org> In-Reply-To: <8b24e4de0708031120n210f97ebj3f992ad7a757075e@mail.gmail.com> References: <8b24e4de0708021606h5bbee266xb3a4814962d26643@mail.gmail.com> <46B2817C.6010609@elischer.org> <8b24e4de0708031120n210f97ebj3f992ad7a757075e@mail.gmail.com>
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Rudy Setiawan wrote: > On 8/2/07, Julian Elischer <julian@elischer.org> wrote: >> Rudy Setiawan wrote: >>> Hi, >>> >>> I am trying to do a traffic redirection based on destination port to >>> another interface/gateway. >>> Currently, I have a freebsd box that does simple NAT and an Internet connection. >>> I am planning to install another internet connection and use the same >>> box to do some traffic redirection. >>> >>> >>> INTERNET1 -------- freebsd box ------- INTERNET2 >>> | >>> | >>> Local Area Network >>> >>> LAN = 192.168.10.0/24 with interface em0 >>> INTERNET1-GW = x.x.x.1 with em1 >>> INTERNET2-GW = y.y.y.1 with rl0 >>> >>> My goal is to redirect any ssh traffic to INTERNET2-GW and I assume >>> that if it can be redirected through INTERNET2-GW then the packets >>> return will go through INTERNET2-GW also. >>> >> no, unless you first NAT the packets with the address of that interface. >> (otherwise the packets will come back through your primary network). >> if yo have cheep dlink or linksys or whatever DSL routers or whatever with NAT >> on them then you can use that successfully and just use ipfw 'fwd' rules to select the interface to use. > > I see, hmm are you suggesting that the linksys should be placed > between the freebsd firewall and the internet? Then do a ipfw fwd > rules to in freebsd to select which interface to go and linksys will > do all the NAT-ing for those packets respectiveily right? exactly > > Thank you. > > Regards, > Rudy
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