Lancom 1811 User Manual

Contents

Lancom 1811 User Manual Manual pdf 66 page image

LANCOM 1811 Wireless DSL – LANCOM 1821+ Wireless ADSL Chapter 8: Security settings66EN8.1.4 Encryption of the data transferA special role comes up to the encryption of data transfer for Wireless LANs.For IEEE 802.11 radio transfer the supplementing encryption standards are802.11i/WPA and WEP. The function of the encryption is to ensure the securitylevel of cable-bound LANs also in Wireless LANs. Use encryption on the data transferred in the WLAN. Activate the strong-est possible encryption available to you ((802.11i with AES, WPA or WEP)and enter the appropriate keys or passphrases into the access point andthe WLAN clients. Regularly change the WEP keys in your access points. The passphrases for802.11i or WPA do not have to be changed regularly as new keys are gen-erated for each connection anyway. This is not the only reason that theencryption with 802.11i/AES or WPA/TKIP is so much more secure thanthe now aged WEP method. If the data is of a high security nature, you can further improve the encryp-tion by additionally authenticating the client with the 802.1x method oractivate an additional encryption of the WLAN connection as used for VPNtunnels ('IPSec over WLAN'). In special cases, a combination of these twomechanisms is possible. Further details to WLAN security and the used encoding methods canbe found in the LCOS reference manual. Please take note of the information in the box “Standard WEP encryp-tion“.