paulj at alphyra.ie
Wed Jan 16 15:36:36 GMT 2002
On 16 Jan 2002, Mark Kilmartin wrote:
> Chapter 4 of the Adv-Routing-HOWTO seems to maybe cover this.
> Or at least it seemed to make some sense to me after much looking at it.
> I think you would set up route so that if the source was the IP address
> of the external interface then route to that interface.
you can do that certainly. here's an edited version of the route setup
on a machine here:
[root at florence alphyra]# ip ru ls
0: from all lookup local
32763: from 172.16.0.0/12 lookup main internal
32764: from 10.0.0.0/8 lookup main internal
32765: from 192.168.0.0/24 lookup main internal
32759: from all to isp1/29 lookup main isp1-pa
32760: from all to isp2/29 lookup main isp2-pa
32761: from isp1/29 lookup isp1 isp1
32762: from isp2/29 lookup isp2 isp2
32766: from all lookup main
32767: from all lookup 253
[root at florence alphyra]# ip ro li table isp1
default via isp1-gw dev eth1 metric 1
[root at florence alphyra]# ip ro li table isp2
default via isp2-gw dev eth1 metric 1
however, that will lead to most of your stuff only using one 1 isp.
cause most of your applications packets will have source address set
to one IP *AFAICT*.
nat on the routers is much simpler.. cause you dont have to play the
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