You can use a Web, AppleShare, or FTP server on your wireless network by either turning off Network Address Translation (NAT) and assigning a fixed IP address to the server, or by mapping a specific public IP address of the base station to an IP address and port in the range used by NAT (a process known as "port mapping").
_To use a different range of IP addresses, open the AirPort Admin Utility, click the Network tab, and choose the "Share a range of IP addresses (using only DHCP)" option. Enter the range of IP addresses you have been assigned
Turning off NAT is not recommended unless you have been assigned a specific range of IP addresses by your network administrator or Internet service provider (ISP). When you turn off NAT, you must enter a real range of IP addresses in the IP address fields or turn off Dynamic Host Configuration Protocol (DHCP) and assign IP addresses to the individual computers on the network.
For more information on sharing a range of IP addresses, see the document "Designing AirPort Networks 2," located at
http://www.apple.com/airport