multiple routing tables for internal router programs

multiple routing tables for internal router programs

[Andrea]

Maybe a strange request, I'll try to explain this as clearer as I can 
(forgive my bad english, please :-) ).

I'm setting a linux box as a router. My router uses multiple routing 
tables, so I can address the traffic from specific ip addresses of my 
lan to distinct ISPs providers (specifying a different default gateway 
fo r each table), marking packets with iptables (prerouting marks).

This works with the forwarding traffic (lan-ISPs) that crosses my router.

But how can I reach the same result for programs that are working INTO 
the linux box? All I want is that a program (ping, for examples, or a 
VOIP server, better) uses a secondary routing table in the same machine. 
In this mode, I can manipulate route settings for different classes of 
program in my router.

Is it possible?

Thanks

Re: multiple routing tables for internal router programs

[Grant Taylor]

On 06/11/07 09:42, Andrea wrote:
> But how can I reach the same result for programs that are working 
> INTO the linux box? All I want is that a program (ping, for examples, 
> or a VOIP server, better) uses a secondary routing table in the same 
> machine. In this mode, I can manipulate route settings for different 
> classes of program in my router.

Just like you are using IPTables to mark packets now and then based 
routing decisions based on the IPTables mark, mark packets inbound as 
you want to.

There is no limit on the number of ways that you can mark packets, 
inbound, outbound, source port, destination port, what ever.

(That is if I have understood you correctly.)



Grant. . . .