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Device Configuration

ORiNOCO® 802.11n Access Points - Software Management Guide 49

Figure 5-13 Wireless Distribution System

Lets say, Access Point 1 of BSS1 wants to communicate with Access Point 2 of the BSS2 in its vicinity. In such a scenario, both

the Access Points 1 and 2, register each other's MAC address. Once registered, a WDS link is established between BSS 1 and

BSS 2. The data transmission over the WDS link follows a four address format, which contains 1) MAC address of the source,

2) MAC Address of the destination, 3) MAC Address of the transmitting AP device, 4) MAC Address of the receiving AP

device.

WDS supports two modes:

1. WDS - Legacy Mode: In this mode, a WDS link can be established between two Legacy AP devices supporting the

IEEE 802.11 a/b/g modes, without serving the 11n authentication functionality while establishing the WDS link. This

mode supports the WEP encryption type to secure the data.

By using this mode we can connect AP-800 / AP-8000 / AP-8100 with legacy products AP-700 / AP-4000. To establish

a WDS link in this mode, configure both the VAPs in WDS-Legacy mode. To configure VAP in this mode, you need to

configure the following parameters first:

— Operational Mode: Set Operational Mode to 802 11a / 11g. Refer Properties

— Current Bandwidth: Set Current Bandwidth to 20 MHz. Refer Properties

Now, you can select the VAP Type as WDS-Legacy.

2. WDS - 11n Mode: In this mode, a WDS link can be established between two BSS supporting the IEEE 802.11n a/ng

modes, serving the association and authentication functionalities. This mode supports the AES (128 bit) encryption

type to secure the data. In WDS-11n mode, each VAP can be configured as either:

a. WDS END - A: The VAP enabled in this mode will act as a WDS enabled AP device and performs standard AP

functionality.

b. WDS END - B: The VAP enabled in this mode will act as a WDS enabled wireless client and perform the

functions of a station/client.

By using this mode, we can connect only to AP-800 / AP-8000 / AP-8100. To establish a WDS link in this mode, one

VAP should be set to “WDS-END-A” and other VAP should be set to “WDS-END-B”. To configure VAP in this mode,

you need to configure the following parameters first:

— Operational Mode: Set Operational Mode to 802 11a/n or 11g/n. Refer Properties

— Current Bandwidth: Set Current Bandwidth to 20 MHz or 40 MHz. Refer Properties

Now, you can select the VAP-Type as WDS-END A or WDS-END B.

Navigate to Configuration > Wireless > Interface 1 / Interface 2 > VAP, the configuration screens (WDS-legacy or

WDS-11n, as selected) appear:

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Proxim ORiNOCO Przewodnik Instalacji Strona 49