linux firewall dual internal network

[kw3i]

hey anyone know where i can find some documentation on setting up my firewall with dual networks? im too cheap to buy a new switch so i just threw a 3rd nic in my firewall. it works fine right now with just one masqd machine, but now i need to setup the 3rd nic and im not sure what types of changes i need to make with my rulesets etc. any unix gurus out there wanna point me in the right direction. thx

 

[Damaged]

So you want to masq two subnets on two different NICs is that what you're asking?

If it is just add the same rules you used for the first interface/subnet altering accordingly. Should be just that easy.

 

[Damaged]

Yup. I was right, it is JUST that easy. See this link:

IP Masquerading Multiple Internal Networks.

 

[kw3i]

ahh thankyou very much, sorry ive been away for a bit: )