ELSA AirLancer MC-11, Руководство пользователя

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Security in the wireless LAN
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AirLancer
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EN
8 Security in the wireless LAN
Significant security considerations apply to the use of wireless LANs. It is
often assumed that unauthorized access to transmitted data is relatively
easy.
However, wireless LAN devices permit the use of modern security
technology:
Closed network
Access control via MAC address
Encryption of the data transfer (WEP)
8.1 Closed network
Every IEEE 802.11 wireless LAN has a network name (IBSS-ID). This network
name is used for the identification and administration of wireless LANs.
A wireless LAN can be set up in such a way as to give access to the network
to any user. These networks are called open networks. A user can log onto an
open network without the network name. Access is gained by entering the
network name 'ANY'.
Access through 'ANY' is impossible in a closed network. Here the user must
enter the correct network name. Unknown networks remain out of reach.
Ad hoc networks are automatically set up as closed networks and cannot be
opened. Infrastructure networks can be operated in an open or a closed
mode. The settings can be changed at the access point.
8.2 Access control via MAC address
Every network device has an unambiguous serial number. This serial number
is called a MAC address (
M edia A ccess C ontrol) and is unique to the world.
The MAC address is hardwired and cannot be altered. You will find the MAC
address on the case of your wireless LAN device.
Access to an infrastructure network can be set for specific wireless LAN
devices by specifying the MAC addresses. Filter lists are included in the
access stations containing the MAC addresses controlling access.
This access control method is not available in the ad hoc network.