TANDBERG D12809 manual Applications, Why Wireless?, 2.2.3Mode Requirement Mandatory

TANDBERG TANDBERG and Wireless LANs

2.2.3Mode Requirement: Mandatory

The mode setting allows for two different modes of operation.

Adhoc: Also known as peer to peer and IBSS Ad Hoc. This mode is used when communication is required between two units and an access point is not available. Additionally , if there is no need to communicate with a wired unit on a standard LAN, you can use this option. This is similar to a ‘back to back’ Ethernet cable used to connect two IP enabled devices without a LAN.

Managed: Also known as Infrastructure, Base Station, or Access Point. When using an access point to connect a wired LAN to a wireless LAN. This is the most popular application. If this mode is used, the SSID in the TANDBERG unit must match the SSID in the access point.

2.2.4 Security – Encryption

The TANDBERG wireless 802.11b feature also supports Wired Equivalent Privacy (WEP) with the choice of 64-bit, 128-bit, or no encryption. This feature allows the wireless network to prevent an unauthorized person from using the network resources. It is important to remember that the encryption keys in the access point and in the TANDBERG unit must match. If the encryption keys do not match, and the SSID is correct, you will get an IP address but will not be able to transmit video and audio.

The encryption keys can be entered as a hexadecimal or as ASCII using a ‘*’ prefix.

Example:

Deffe57563dee hexadecimal

*secretkeyASCII

The 64-bit key can be 10 hexadecimals or ‘*’ + 5 ASCII characters. The 128-bit keys can be 26 hexadecimals or ‘*’ + 13 ASCII characters.

Additional security is offered in some access points by requiring the MAC addresses of the 802.11b NIC cards to be registered in the access point. Only units with the MAC addresses can use the access point.

3. Applications

3.1 Why Wireless?

The IP network is becoming a viable network for video conferencing. Now that more companies are beginning to switch to IP for their video conferencing needs, alternate methods of transmission are becoming necessary. The use of wireless 802.11b is allowing