Map multiple public IP addresses to one private IP
Posted on 2006-06-04
The small company hosts multiple secure web sites (HTTPS). The ISP assigns all public IP addresses to one server with a private IP without blocking any ports (ISP manages the router). They programmed the server point each public IP address to a different private IP address, for example, x.x.x.1 to 192.168.1.2, x.x.x.2 to 192.168.1.3. I suggest them to buy a Cisco PIX 506 to do NAT. They worry adding Cisco firewall will bring a problem and they don’t want to make any changes on the web server. Can I map multiple public IP addresses to one private IP address, for example x.x.x1 to x.x.x.5 pointing to 192.168.1.2? If yes, what are the command lines?