use a subnet mask of 255.255.255.255 in the subnet mask field to force the network number to be identical to the host ID.
4.IP Subnet Mask - Enter the subnet mask for this destination. Follow the discussion on IP subnet mask in this chapter.
5.Gateway IP Address - Enter the IP address of the gateway. The gateway is an immediate neighbor of your Prestige that will forward the packet to the destination. On the LAN, the gateway must be a router on the same segment as your Prestige; over ISDN, the gateway must be the IP address of one of the Remote Nodes.
6.The Metric and the Private parameters have the same meaning as those in the Remote Node Setup.
Once you have completed filling in the menu, press ENTER at the message: Press ENTER to Confirm ... to save your selections, or press ESC at any time to cancel your selections.