Note: If you are configuring the ZyXEL Device from a computer connected to the
wireless LAN and you change the ZyXEL Device’s ESSID or WEP settings, you
will lose your wireless connection when you press Apply to confirm. You must
then change the wireless settings of your computer to match the ZyXEL
Device’s new settings.
The following table describes the general wireless LAN fields in this screen.
Table 45 ADVANCED > WIRELESSLABEL DESCRIPTION
ESSID (Extended Service Set IDentity) The ESSID identifies the Service Set with which a wireless station is associated. Wireless stations associating to the access point (AP) must have the same ESSID. Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the wireless LAN.
If you are configuring the ZyXEL Device from a computer connected to the wireless LAN and you change the ZyXEL Device’s ESSID or WEP settings, you will lose your wireless connection when you click Apply. You must then change the wireless settings of your computer to match the ZyXEL Device’s new settings.
Channel Select a channel from the drop-down list box depending on your particular region. Security Select Disable to allow wireless devices to communicate with the ZyXEL Device
without any data encryption.
Select WPA (Wi-Fi Protected Access) to have the ZyXEL Device perform user authentication and data encryption. WPA’s data encryption is stronger than WEP. Select WEP (Wired Equivalent Privacy to have the ZyXEL Device encrypt data frames before transmitting them over the wireless network. Select the check box to enable WEP data encryption. Then configure the WEP keys.
WPA Group Key
Rekeying The Group Key Rekeying field sets how often the AP (if using WPA-PSK key management) or RADIUS server (if using WPA key management) sends a new group key out to all clients. The re-keying process is the WPA equivalent of automatically changing the WEP key for an AP and all stations in a WLAN on a periodic basis. Setting of the WPA Group Key Update Timer is also supported in WPA-PSK mode. The default is 8,600 seconds.
Use WPA with
Pre-shared Key Select this radio button to use a pre-shared key for WPA. Type a pre-shared key from 8 to 63 case-sensitive ASCII characters (including spaces and symbols). Use WPA with
RADIUS Server Select this radio button to use a RADIUS server to authenticate the wireless clients. Server IP/
Domain Enter the external authentication server’s IP address (in dotted decimal notation) or domain name. Authentication
Port You need not change this value unless your network administrator instructs you to do so with additional information. Shared Secret
Key Enter a password (up to 31 alphanumeric characters) as the key to be shared between the external authentication server and the ZyXEL Device. The key is not sent over the network. This key must be the same on the external authentication server and the ZyXEL Device.
WEP
Encryption Select 64-bit or 128-bit for the WEP key length.
Mode Select the type of input mode from the drop-down list box. Choices are HEX and ASCII.
Select ASCII to enter the WEP keys as ASCII characters. Select HEX to enter the WEP keys as hexadecimal characters.
WEP Key 1 … 4 Enter the WEP keys in the fields provided and select a key as the default key to use. If you select 64 bit in the WEP Encryption field.
Enter either 10 hexadecimal digitsin the range of “A-F”, “a-f” and “0-9” (for example 11AA22BB33) for HEX key type
or
Enter 5 printable ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0- 9” (for example MyKey) for ASCII key type.
If you select 128 bit in the WEP Encryption field,
Enter either 26 hexadecimal digitsin the range of “A-F”, “a-f” and “0-9” (for example, 00112233445566778899AABBCC) for HEX key type
or
Enter 13 printable ASCII characters (case sensitive) ranging from “a-z”, “A-Z” and “0- 9” (for example, MyKey12345678) for ASCII key type.
Note: The values for the WEP keys must be set up exactly the same
on all wireless devices in the same wireless LAN.
ASCII WEP keys are case sensitive.
Beacon Interval Set the number of milliseconds that should pass between sending out a beacon. Enter a time period between 1 and 1000. The default is 100.
RTS Threshold Enter a value between 0 and 2442 to enable an RTS/CTS handshake to avoid retransmitting due to hidden nodes. The default is 2432.
Fragmentation
Threshold Enter a value between 256 and 2446 to enable a fragmentation threshold. This sets the maximum size of data fragments that can be sent. The default is 2432. Use a low setting if there is a great deal of radio interference.
Preamble Type Preamble is used to signal that data is coming to the receiver.
Short preamble increases performance as less time sending preamble means more time for sending data. All IEEE 802.11b compliant wireless adapters support long preamble, but not all support short preamble.
Select Long Preamble if you are unsure what preamble mode the wireless adapters support, and to provide more reliable communications in busy wireless networks. Select Short Preamble if you are sure the wireless adapters support it, and to provide more efficient communications.
Authentication
Method Select Open System to allow any device to authenticate and then attempt to communicate with the ZyXEL Device. Using open authentication, any wireless device can authenticate with the ZyXEL Device, but the device can only communicate if its WEP keys match the ZyXEL Device. Devices not using WEP do not attempt to authenticate with a ZyXEL Device that is using WEP. Open authentication does not rely on a RADIUS server on your network.
Select Shared Key to have the ZyXEL Device use shared key authentication. The ZyXEL Device sends an unencrypted challenge text string to any device attempting to communicate with the ZyXEL Device. The device-requesting authentication encrypts the challenge text and sends it back to the ZyXEL Device. If the challenge text is encrypted correctly, the ZyXEL Device allows the requesting device to authenticate. However, both the unencrypted challenge and the encrypted challenge can be monitored; thus leaving the ZyXEL Device open to attack from an intruder who calculates the WEP key by comparing the unencrypted and encrypted text strings. Because of this weakness, shared key authentication can be less secure than open authentication. Like open authentication, shared key authentication does not rely on a RADIUS server on your network.
Select Both to allow subscribers to communicate with or without data encryption. Table 45 ADVANCED > WIRELESS (continued)
Default Click this button to load the factory default wireless LAN settings. Apply Click Apply to save the settings.
Table 45 ADVANCED > WIRELESS (continued)
C
H A P T E R
24
Subscriber Login
To log in as a subscriber, enter a web site address such as www.zyxel.com in a web browser.
If user authentication is activated, the login screen displays prompting you to enter the user
name and password. A standard subscriber login screen (with the credit card function) is
shown in the figure below.
Figure 85 Subscriber Login Screen