This tab appears only when Public interface connected to the Internet is selected on the NAT tab.

If your Internet service provider (ISP) provides you with a range of public IP addresses instead of a single address, use this tab to configure the addresses on the public NAT-enabled interface.

Dialog box element Description

Address list

Lists the configured ranges of public IP addresses assigned to you by your ISP.


Click to reserve specific public IP addresses from the configured ranges that cannot be used for address translation. Reserved public IP addresses can be used for Internet Web servers that are placed on the private network. You cannot configure a reservation until you configure at least one IP address pool.

Additional references