IP Address Aliasing (more than one IP address)
I am getting ready to setup a firestarter firewall as a perimeter (gateway) firewall. I need to add more than one IP address to the external interface so that I can port forward from these external IP's to internal IP's.
For example external 220.127.116.11 port:80 to internal 192.168.0.3
For example external 18.104.22.168 port:25 to internal 192.168.0.40
For example external 22.214.171.124 port:80 to internal 192.168.0.23
So, what I'm asking is how to assign multiple IP addresses to the same NIC. I will be using CentOS 4.3 and Firestarter as the firewall. Is this possible or is there a better firewall application out there. I'm looking for simplicity and reliability.