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13 Wireless LAN (WLAN)....................................................................................................917
13.1 Introduction.........................................................................................................................................917
13.2 Application scenarios...........................................................................................................................917
13.2.1 Infrastructure mode.............................................................................................................918
13.2.2 Hotspot or guest access.......................................................................................................918
13.2.3 Managed mode...................................................................................................................918
13.2.4 WLAN bridge (point-to-point)..............................................................................................919
13.2.5 WLAN bridge in relay mode.................................................................................................919
13.2.6 WLAN bridge to an access point – managed and unmanaged mixed...................................920
13.2.7 Wireless Distribution System (point-to-multipoint)................................................................920
13.2.8 Client mode.........................................................................................................................920
13.2.9 Client mode with mobile objects in industry.........................................................................921
13.3 WLAN standards..................................................................................................................................921
13.3.1 Data rates in compatibility mode.........................................................................................921
13.3.2 IEEE 802.11n.......................................................................................................................922
13.3.3 IEEE 802.11a: 54 Mbps........................................................................................................928
13.3.4 IEEE 802.11h – ETSI 301 893...............................................................................................928
13.3.5 IEEE 802.11g: 54 Mbps........................................................................................................931
13.3.6 IEEE 802.11b: 11 Mbps........................................................................................................931
13.4 WLAN security ....................................................................................................................................931
13.4.1 Basics .................................................................................................................................931
13.4.2 IEEE 802.11i /WPA2.............................................................................................................932
13.4.3 TKIP and WPA .....................................................................................................................934
13.4.4 WEP ....................................................................................................................................935
13.4.5 LEPS – LANCOM Enhanced Passphrase Security...................................................................935
13.4.6 Standard WEP encryption.....................................................................................................936
13.4.7 Background WLAN scanning................................................................................................939
13.5 Configuration of WLAN parameters.....................................................................................................940
13.5.1 General WLAN settings........................................................................................................940
13.5.2 WLAN security.....................................................................................................................942
13.5.3 Selecting approved stations for the WLAN...........................................................................947
13.5.4 Encryption settings...............................................................................................................948
13.5.5 The physical WLAN interfaces..............................................................................................951
13.5.6 Point-to-point peers.............................................................................................................961
13.5.7 The logical WLAN interfaces.................................................................................................962
13.5.8 IEEE 802.1x/EAP..................................................................................................................970
13.5.9 Expert WLAN settings..........................................................................................................971
13.5.10 WLAN routing (isolated mode)...........................................................................................973
13.5.11 Addition(s) to LCOS 8.80....................................................................................................974
13.6 Configuring the client mode.................................................................................................................979
13.6.1 Client settings......................................................................................................................979
13.6.2 Set the SSID of the available networks.................................................................................980
13.6.3 Encryption settings...............................................................................................................980
13.6.4 Roaming..............................................................................................................................981
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Reference Manual
Contents
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