Apple designing airport networks Benutzerhandbuch

    AirPort Network Designs

 

Click Network and configure how the base station will share its Internet access with 
AirPort and Ethernet computers. Select the “Distribute IP addresses” checkbox and the 
“Share a single IP address (using DHCP and NAT)” button.

By default, AirPort and Ethernet client computers share a single IP address using 
Network Address Translation (NAT). The base station acts as a bridge between the 
AirPort and local Ethernet networks. When Modem is selected in the “Connect using” 
pop-up menu in the Internet pane, both the Ethernet LAN (G) port and the Ethernet 
WAN ( ) port are bridged, and both can share a single IP address using NAT.

If you are connecting to the Internet by Ethernet or PPPoE, only the 

Ethernet LAN (G) port is bridged.

Enabling NAT lets you share a single Internet connection among several computers. 
Enabling DHCP lets the base station dynamically and automatically assign IP addresses 
to client computers, which simplifies each computer’s TCP/IP configuration. Bridging 
allows devices and computers using Ethernet and computers using AirPort to 
communicate with one another.

Note:  If your base station can use Power over Ethernet and receive power and the 
network connection on the WAN port, by default NAT is not enabled.

If you want to adjust optional advanced settings, go to “Setting Advanced Options” on 
page 48. If you are finished changing settings, click the Update button. Your computer 
transfers the new settings to the base station. When the transfer is complete, the base 
station restarts and its new settings are active.

LL0214.book  Page 46  Monday, October 25, 2004  4:06 PM