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Hello,
On Wed, 7 Nov 2001, Michael McConnell wrote:
> What I want to do is create a PAT / NAT based router with multiple external
> address.
> When a Client Machine creates a connection, the PAT / NAT router would round
> robin rotate outbound connections via multiple external ip Address.
>
> ------------ ---------------------
> =client = -----------> - server -
> = 10.10.1.5 = - 10.10.1.254 -
> ------------ - external 55.22.32.12 - connection 1
> -----------> real world
> - external 55.22.32.13 - connection 2
> -----------> real world
> - external 55.22.32.14 - connection 3
> -----------> real world
> ----------------------------------
>
> Anyone have any thoughts on how to do this?
There is a patch for Linux 2.2 that can allow NAT-ed hosts to
use multiple gateways (and not only this). The same work is not
completed for 2.4:
http://www.linuxvirtualserver.org/~julian/
look for routes-2.2.19-4.diff
Then look for "May be the most used example (masquerade through many ISPs):"
in dgd-usage.txt
For your case, I'm not sure in what relation are the external addresses
you showed. Are they from same subnet, are the IP ranges (provided
from each link) distinct. Based on such information you can build
your routes properly. Let me know if you need more information
because I'm sure the docs are not perfect. But a little knowledge
about iproute2 and multipath routes is required. If in doubt, send
me your topology, hosts, NAT routers, border gateways and may be I
can show you the needed settings for the routes in each end host
or router.
The only missing part is may be the fix to IPVS to support
these features. It was done before but I should update it soon.
> Thanks, Michael
Regards
--
Julian Anastasov <ja@xxxxxx>
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