Novell LINUX ENTERPRISE DESKTOP 11 - ADMINISTRATION GUIDE 17-03-2009 Administration Manual page 287

Some vendors have implemented the non-standard "Dynamic WEP". It works ex-
actly as WEP and shares the same weaknesses, except the fact that the key is peri-
odically changed by a key management service.
TKIP (defined in WPA/IEEE 802.11i)
This key management protocol defined in the WPA standard uses the same encryp-
tion algorithm as WEP, but eliminates its weakness. Because a new key is generated
for every data packet, attacks against these keys are in vain. TKIP is used together
with WPA-PSK.
CCMP (defined in IEEE 802.11i)
CCMP describes the key management. Usually, it is used in connection with WPA-
EAP, but it can also be used with WPA-PSK. The encryption takes place according
to AES and is stronger than the RC4 encryption of the WEP standard.
20.1.2 Configuration with YaST
To configure the wireless network card, select Network Devices > Network Settings in
the YaST control center. The Network Settings dialog where you can configure general
network settings opens. Please refer to
with YaST" (page 232) for more information about the general network configuration.
All network cards that have been detected by the system are listed under the Overview
tab.
Choose your wireless card from the list and click Edit to open the Network Card Setup
dialog. Configure whether to use a dynamic or a static IP address under the tab Address.
You can also adjust General and Hardware settings such as Device Activation or
Firewall Zone and driver settings. In most cases there is no need to change the precon-
figured values.
Click Next to proceed to the wireless network card specific configuration dialog. If you
are using NetworkManager (refer to
more information), there is no need to adjust the wireless device settings, since these
will be set by NetworkManager on demand—proceed with Next and Yes to finish the
configuration. If you are using your computer only in a specific wireless network, make
the basic settings for WLAN operation here.
Section 19.4, "Configuring a Network Connection
Section 19.5, "NetworkManager" (page 252) for
Wireless Communication 275