> > > I have 2 NICs on each of my Linux boxes connected to 2 different
> > > network segments and routers and I would like packets coming on one
> > > ethernet interface (from any source ip) to go back over the same
> > > interface. Is that possible in Linux ?
>
> I think that's what the original poster wants to do:
>
> eth0: 192.168.1.1 (network 1)
> eth1: 209.186.42.1 (network 2)
>
> route add default gw dev eth1
> route add -net 192.168.1.255 dev eth0
How about this example:
ip address add 192.168.1.1/24 brd + dev eth0
ip link set eth0 up
ip a a 192.168.41.1/24 brd + dev eth1
ip l s eth1 up
ip rule add from 0/0 dev eth0 table 20
ip ru a from 0/0 dev eth1 table 21
ip route add table 20 via 10.0.0.1 dev eth0 onlink
ip r a t 21 via 10.9.9.1 dev eth1 onlink
This sets up eth0 and eth1 with the respective networks and adds rules to
match packets into tables by which they are distinctly routed.
-d
-
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