3Com 3C421600A Quick Setup Manual page 43

Using the Web Configuration Interface from PC and UNIX-based Platforms
In the Number of Addresses field, enter the number of public IP
addresses that will be available as a continuous pool for outgoing
TCP/IP connections.
Click Apply.
If you select Static, the fields, Public IP Address and Private IP
Address, will be visible. See Figure 2-19.
In the Public IP Address field, enter the IP address in the contiguous
pool of addresses that will be used for NAT.
In the Private IP Address field, enter the number of IP address that
will be used for NAT.
Click Apply.
Figure 2-19 Shared ISP Static NAT Configuration
12 Dial Out — Allows you to configure the RAS 1500's modems so that
users on the local LAN can access the RAS 1500's as though the modems
were connected to the user's local COM port. See Figure 2-20.
2-21