Compatible Systems 5.4 manual NAT Range Dialog Box

244 Chapter 14 - General

NAT Range Dialog Box

NAT Range Dialog Box

You can access the NAT Range Dialog Box by selecting one of the New or Modify buttons in the NAT Configuration Dialog Box (under Global/NAT Configuration). This dialog box allows you to enter a NAT address range. It can be a single IP address or a range of addresses.

The address range may be specified in several different ways:

•Addresses can be specified in normal dotted-decimal notation. If the rightmost components are 0, they are treated as wild cards (e.g., 128.138.12.0 matches all hosts on the 128.138.12 subnet).

•An inclusive range of addresses can be specified using a "dash notation" in the form of #.#.#.{# -#}. For example, 10.5.3.{1-30} would be parsed as the IP addresses 10.5.3.1, 10.5.3.2,..... 10.5.3.29, and 10.5.3.30 (and every IP address in between). Each of these parsed addresses would have a mask of /32 or 255.255.255.255

•Addresses may also be specified as a hexadecimal number (e.g., 0x82cc0801 matches the host address 130.204.8.1).

•A bit field can also be used to indicate a range of addresses by denoting the top or most significant bits which define the range. For example, an address specified as 192.15.32.0/19 would indicate a range from 192.15.32.1 to 192.15.63.255.