Date: Fri, 7 Dec 2001 14:38:04 -0600 (CST) From: Nick Rogness <nick@rogness.net> To: Lars Eggert <larse@ISI.EDU> Cc: rick norman <rick.norman@lmco.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: Nat through two DSL Message-ID: <Pine.BSF.4.21.0112071433530.4544-100000@cody.jharris.com> In-Reply-To: <Pine.BSF.4.21.0112071350080.4544-100000@cody.jharris.com>
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On Fri, 7 Dec 2001, Nick Rogness wrote: > On Fri, 7 Dec 2001, Lars Eggert wrote: > > > rick norman wrote: > > > > > What would be nice would be to load balance on a per connection > > > basis, not a per packet basis, between the two modems. > > > Any ideas how to do this ? > > > > > > Not with the current mechanisms in FreeBSD. You'd need a simple policy > > routing engine (actually, policy forwarding). A prototype based on tun > > devices shouldn't be too hard to put together. Basically, you'd want > > to pick one of your links based on destination address and optionally > > the port pair. > > > An idea on how you would do pseudo load-balancing, would be: > Damn it, fat fingered it...corrections to firewall: ipfw add 500 divert natd1 ip from $NET to 0.0.0.0/1 out via $DSL_INT#1 ipfw add 550 divert natd1 ip from 0.0.0.0/1 to any in via $DSL_INT#1 ipfw add 560 fwd $DSL-2 ip from $NET to 128.0.0.0/1 out via $DSL_INT#1 ipfw add 570 divert natd2 ip from any to any via $DSL_INT#2 > > Where: > - $DSL_INT#1 is the default gateway interface. > - $DSL_INT#2 is the interface of the second dsl Service > - $DSL-2 is the IP of the gateway to the second dsl Service > - $NET is your local network IP subnet. > > What the above is doing is sending anything TO 1-127.X.X.X out dsl service 1 and sending 128-256.X.X.X out dsl service 2. Nick Rogness <nick@rogness.net> - Keep on Routing in a Free World... "FreeBSD: The Power to Serve!" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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