Ok, so I think I understand this simple routing question. I have several internal subnets: 172.16.1.0/24, 172.16.2.0/24, etc. I have 2 out-going network links: 1.1.1.1 and 2.2.2.2 So I can change the out-going route by using: echo "100 link1" >> /etc/iproute2/rt_tables ip rule add from 172.16.1.0/24 table link1 ip rule add from 172.16.2.0/24 table link1 ip route add default via 1.1.1.1 dev $EXTERNAL_INTERFACE table link1 echo "200 link2" >> /etc/iproute2/rt_tables ip rule add from 172.16.3.0/24 table link2 ip rule add from 172.16.4.0/24 table link2 ip rule add from 172.16.5.0/24 table link2 ip route add default via 2.2.2.2 dev $EXTERNAL_INTERFACE table link2 and if I understand this correctly, this doesn't change anything in iptables, so I can still this at the end of my firewall script. I'll also want to use SNAT and change the out-going IP's so they come back on the correct link. Look good? I can't test this in production very often, so before I do I thought I'd run it by everyone since I'm very much a newbie on tc... Thanks! Dan
