ZyXEL Communications NWA-3500 ユーザーズマニュアル

Chapter 1 Introducing the NWA

NWA-3500/NWA-3550 User’s Guide

In the figure below, A and B use X as an AP to access the wired network, while X 
and Y communicate in bridge mode.

When the NWA is in AP + Bridge mode, security between APs (the Wireless 
Distribution System or WDS) is independent of the security between the wireless 
stations and the AP. If you do not enable WDS security, traffic between APs is not 
encrypted. When WDS security is enabled, both APs must use the same pre-
shared key. See 

 for more details.

Unless specified, the term “security settings” refers to the traffic between the 
wireless stations and the NWA.

Figure 4   AP+Bridge Application 

A BSS (Basic Service Set) is the set of devices forming a single wireless network 
(usually an access point and one or more wireless clients). An SSID (Service Set 
IDentifier) is the name of a BSS. In MBSSID (Multiple BSS) mode, the NWA 
provides multiple virtual APs, each forming its own BSS and using its own 
individual SSID profile.

You can configure up to sixteen SSID profiles, and have up to eight active at any 
one time.

You can assign different wireless and security settings to each SSID profile. This 
allows you to compartmentalize groups of users, set varying access privileges, and 
prioritize network traffic to and from certain BSSs.