Apple designing airport networks 用户手册
Chapter 4
AirPort Network Designs
27
Changing the Channel
The “channel” is the radio frequency over which your base station communicates. If you
use only one base station (for example, at home), you probably won’t need to change
the channel frequency. If you set up multiple base stations in a school or office, use
different channel frequencies for base stations that are within approximately 150 feet of
each other.
use only one base station (for example, at home), you probably won’t need to change
the channel frequency. If you set up multiple base stations in a school or office, use
different channel frequencies for base stations that are within approximately 150 feet of
each other.
Adjacent base stations should have at least three channels between their channel
frequencies. So if base station A is set to channel 1, base station B should be set to
channel 4 or higher.
frequencies. So if base station A is set to channel 1, base station B should be set to
channel 4 or higher.
AirPort-equipped computers automatically tune to the channel frequency your base
station is using when they join the AirPort network. If you change the channel
frequency, AirPort client computers do not need to make any changes.
station is using when they join the AirPort network. If you change the channel
frequency, AirPort client computers do not need to make any changes.
Creating a Closed Network
The closed network option hides the name of the network created by the AirPort
Extreme Base Station or AirPort Express. Users must enter the exact network name and
password to join the AirPort network.
Extreme Base Station or AirPort Express. Users must enter the exact network name and
password to join the AirPort network.
To create a closed network, select the “Create a closed network” checkbox in the
AirPort pane of the AirPort Admin Utility.
AirPort pane of the AirPort Admin Utility.
Note: Creating a closed network can prevent AirPort base stations from automatically
selecting a channel.
selecting a channel.
To join a closed network, users of client computers must follow these steps:
1
Click the AirPort status icon in the menu bar and choose Other from the list of available
networks.
networks.
2
Enter the name and password of the AirPort network.
Note: The AirPort Setup Assistant can’t create a connection to a base station with a
closed network. Use AirPort Admin Utility to modify the configuration of a base station
with a closed network. To use AirPort Admin Utility to set other advanced options,
see “Setting Advanced Options” on page 48.
closed network. Use AirPort Admin Utility to modify the configuration of a base station
with a closed network. To use AirPort Admin Utility to set other advanced options,
see “Setting Advanced Options” on page 48.
LL0214.book Page 27 Monday, October 25, 2004 4:06 PM