Draytek 2950 User Guide

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Vigor2950 Series User’s Guide 
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WDS means Wireless Distribution System. It is a protocol for connecting two access points 
(AP) wirelessly. Usually, it can be used for the following application: 
Provide bridge traffic between two LANs through the air. 
Extend the coverage range of a WLAN. 
To meet the above requirement, two WDS modes are implemented in Vigor router. One is 
Bridge, the other is Repeater. Below shows the function of WDS-bridge interface: 
 
The application for the WDS-Repeater mode is depicted as below:   
 
The major difference between these two modes is that: while in Repeater mode, the packets 
received from one peer AP can be repeated to another peer AP through WDS links. Yet in 
Bridge mode, packets received from a WDS link will only be forwarded to local wired or 
wireless hosts. In other words, only Repeater mode can do WDS-to-WDS packet forwarding. 
In the following examples, hosts connected to Bridge 1 or 3 can communicate with hosts 
connected to Bridge 2 through WDS links. However, hosts connected to Bridge 1 CANNOT 
communicate with hosts connected to Bridge 3 through Bridge 2.