[CentOS] two gateways on one PC ?

[Robert]

Niels Przybilla wrote:

> Hi,
>
> i added second nic to my server
>
> I have these two uplinks:
>
> My main uplink is 195.XXX.XXX.XXX
> My secondary is 83.XXX.XXX.XXX
>
> When I add the secondary NIC, CentOS automatically sets default gw to 
> 83.XXX.XXX.1 and deletes the gateway from 195.XXX.XXX.1
>
> How can I set it that CentOs uses the gateway 195.XXX.XXX.1 as default 
> gateway. When I set this manually with route, CentOS changes my 
> sentings after a reboot.
>  
> And I need also to accept incoming traffic on 83.XXX.XXX.1.
>
> Thanks for your help and best regards
>
> Niels

Have you checked http://lartc.org/howto/index.html -- especially section 
4.x ?