ZyXEL N4100 Betriebsanweisung

 Chapter 25 Wireless LAN

N4100 User’s Guide

Channel Width

Select whether the N4100 uses a wireless channel width of Auto 20/
40 MHz or 20 MHz.

A standard 20MHz channel offers transfer speeds of up to 150Mbps 
whereas a 40MHz channel uses two standard channels and offers 
speeds of up to 300 Mbps. 

40MHz (channel bonding or dual channel) bonds two adjacent radio 
channels to increase throughput. The wireless clients must also 
support 40 MHz. It is often better to use the 20 MHz setting in a 
location where the environment hinders the wireless signal. 

It is recommended that you select Auto 20/40 MHz. This allows the 
N4100 to adjust the channel bandwidth depending on network 
conditions.

Select 20 MHz if you want to lessen radio interference with other 
wireless devices in your neighborhood or the wireless clients do not 
support channel bonding.

This field is available only when you set the 802.11 Mode to 802.11n 
only, 802.11n + 802.11g or 802.11n + 802.11g + 802.11b.

Data Rate

Select a transmission rate at which wireless clients can always connect 
to the N4100.

Security

Select Disable to allow wireless devices to communicate with the 
N4100 without any data encryption. 

Select WPA (Wi-Fi Protected Access) to have the N4100 perform user 
authentication and data encryption. WPA’s data encryption is stronger 
than WEP.

Select WPA2 (Wi-Fi Protected Access 2) to have the N4100 perform 
user authentication and data encryption. WPA2’s data encryption is 
stronger than WPA and WEP.

Select WEP (Wired Equivalent Privacy to have the N4100 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/WPA2
Group Key 
Rekeying

The Group Key Rekeying field sets how often the AP (if using 
WPA(2)-PSK key management) or RADIUS server (if using WPA(2) 
key management) sends a new group key out to all clients. 

Use WPA/WPA2 
with Pre-shared 
Key

Select this radio button to use a pre-shared key for WPA or WPA2. 

Pre-shared 

Key 

Type a pre-shared key from 8 to 63 case-sensitive ASCII characters 
(including spaces and symbols).

Use WPA/WPA2 
with RADIUS 
Server

Select this radio button to use a RADIUS server to authenticate the 
wireless clients. 

Server IP

Enter the external authentication server’s IP address (in dotted 
decimal notation). 

Table 48   ADVANCED > WIRELESS (continued)