ZyXEL Communications Corporation VSG1435B101 Manuel D’Utilisation

 Chapter 7 Wireless

VSG1435-B101 Series User’s Guide

This section discusses wireless LANs in depth. For more information, see the 
appendix.

Wireless networks consist of wireless clients, access points and bridges. 

DTIM Interval

Delivery Traffic Indication Message (DTIM) is the time period after which 
broadcast and multicast packets are transmitted to mobile clients in the 
Power Saving mode. A high DTIM value can cause clients to lose 
connectivity with the network. This value can be set from 1 to 100.

802.11 Mode

Select 802.11b Only to allow only IEEE 802.11b compliant WLAN 
devices to associate with the ZyXEL Device.

Select 802.11g Only to allow only IEEE 802.11g compliant WLAN 
devices to associate with the ZyXEL Device.

Select 802.11n Only to allow only IEEE 802.11n compliant WLAN 
devices to associate with the ZyXEL Device.

Select 802.11b/g Mixed to allow either IEEE 802.11b or IEEE 802.11g 
compliant WLAN devices to associate with the ZyXEL Device. The 
transmission rate of your ZyXEL Device might be reduced.

Select 802.11b/g/n Mixed to allow IEEE 802.11b, IEEE 802.11g or 
IEEE802.11n compliant WLAN devices to associate with the ZyXEL 
Device. The transmission rate of your ZyXEL Device might be reduced.

802.11 
Protection

Enabling this feature can help prevent collisions in mixed-mode networks 
(networks with both IEEE 802.11b and IEEE 802.11g traffic).

Select Auto to have the wireless devices transmit data after a RTS/CTS 
handshake. This helps improve IEEE 802.11g performance.

Select Off to disable 802.11 protection. The transmission rate of your 
ZyXEL Device might be reduced in a mixed-mode network.

This field displays Off and is not configurable when you set 802.11 
Mode to 802.11b Only.

Preamble

Select a preamble type from the drop-down list box. Choices are Long or 
Short. See 

 for more information.

This field is configurable only when you set 802.11 Mode to 802.11b.

Back

Click this to return to the previous screen without saving.

Apply

Click Apply to save your changes.

Cancel

Click Cancel to restore your previously saved settings.

Table 21   Network Settings > Wireless > Others