On Wed, 2004-12-15 at 04:44, O-Zone wrote:
> Hi all,
> i want to route traffico for a specific subnet to routeA while default route
> for my linuxbox is routeB. Here's the diagram:
>
> (internet)--[Router A]---+
> |
> [Linux BOX]----(Subnet 10.0.0.x)
> |
> (internet)--[Router B]---+
>
> RouterA and RouterB have the same subnet (i.e. RouterA lan is 192.168.0.1 and
> RouterB has 192.168.0.2) and LinuxBox have ONLY ONE externat iface like
> 192.168.0.3. While i use LinuxBOX i wanna go "out" trought 192.168.0.1 but
> PC's MASQ'ed in Subnet 10.0.0.x must go out throug 192.168.0.2.
leave the default gateway of "Linux Box" set to RouterA--which will take
care of all packets from "Linux Box" being routed out via RouterA.
setup policy routing so that packets from 10.0.0.0/24 get routed out via
RouterB:
echo 200 RouterB >> /etc/iproute2/rt_tables
ip rule add fwmark 0x01 table RouterB
ip route add default via 192.168.0.2 table RouterB
ip route flush cache
iptables -t mangle -A PREROUTING -i $insideIF -s 10.0.0.0/24 \
-j MARK --set-mark 0x01
add filter and nat rules as necessary...
-j
--
"I'm a well-wisher, in that I don't wish you any specific harm."
--The Simpsons
