Using 2 NICS and 2 Ip's for inbound and out bound traffic

[Nomis]

Hi ALL

I am currently running ISCP on Debian and it works great.

We are experiencing bandwidth problems ( We dont have enough). So now we want to get a second line. Its cheaper to have two lines than to upgrade the current one.

So what I would like to do is this.

All inbound traffic on 196.xxx.xx.4 on Eth1
All outbound traffic on 196.xxx.xx.5 on Eth2

Or

All inbound traffic on 196.xxx.xx.4 on Eth1
All outbound mail traffic on 196.xxx.xx.5 on Eth2
Will I have to change the outbount MX records (smtp.XXX.co.za)
This can be done in the template file that creates the zone file.

Thanks for you help in advance

[fluser]

Have a look on this:
- VYatta
- pfsense

I think one of this two tools can help you