Bert, I think that I've just spent so much time staring at this that I think everyone else knows what I know :) Your suggestions work great (with one minor change).. thank you! But... I don't understand why. > ip rule add from 10.4.44.11 table speed > ip rule add from 10.4.44.12 table lucent What context is the 'from' in? It seems to me that the linux box would never see packets from either of those two addresses (.11 and .12). Maybe to them, but not from them. > ip route add default via 10.4.44.1 dev eth0 table speed > ip route add default via 10.4.44.1 dev eth0 table lucent I changed the gw on the speed entry to 10.4.44.2, which is correct for that router. Thanks again for all the help.. Ross -----Original Message----- From: lartc-admin@xxxxxxxxxxxxxxx [mailto:lartc-admin@xxxxxxxxxxxxxxx]On Behalf Of bert hubert Sent: Thursday, December 20, 2001 2:23 PM To: Ross Simpson Cc: Lartc@xxxxxxxx Ds9a. Nl Subject: Re: [LARTC] adv. routing features not working? On Thu, Dec 20, 2001 at 03:17:47PM -0800, Ross Simpson wrote: > Bert, > > Here's a little diagram: Ok - that helps a *lot*. I sometimes feel as if the esteemed readers of our list think that we are clairvoyant! > > I N T E R N E T > > / \ > > ------------- ------------- > > | 10.4.44.1 | | 10.4.44.2 | > > | lucent | | speed | > > ------------- ------------- > > port-fw 10.4.44.12:80 port-fw 10.4.44.11:80 > > \ / > > \ / > > | > > eth0 > > -------------- > > | 10.4.44.11 | > > | 10.4.44.12 | > > | linux | > > -------------- > > So basically what I want is that for packets coming in from 'speed' to use > speed as the outgoing gateway. Looking at incoming packets on the linux > box, I see that when the router does port forwarding, it doesn't rewrite any > addresses -- the packets are still from the remote client and destined for > the linux box. Ok. > The reason I had 'to' in my rule (and two IPs on the linux box) is so I > could differentiate traffic from each router -- traffic going to 10.4.44.11 > has to be from the 10.4.44.2 router. The 'from' address was always > different (the remote client). That's still the case isn't it? I think your linux box needs this: ip rule add from 10.4.44.11 table speed ip rule add from 10.4.44.12 table lucent ip route add default via 10.4.44.1 dev eth0 table speed ip route add default via 10.4.44.1 dev eth0 table lucent Regards, bert -- http://www.PowerDNS.com Versatile DNS Software & Services http://www.tk the dot in .tk Netherlabs BV / Rent-a-Nerd.nl - Nerd Available - Linux Advanced Routing & Traffic Control: http://ds9a.nl/lartc _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/