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WLAN—Getting Technical
The Standard for Security
IEEE 802.11i
The WPA2 security mechanism is defined in the IEEE 802.11i
standard. WPA2 is an extension of the familiar security mech-
anism WPA (Wi-Fi Protected Access).
The main feature of the extension of WPA to WPA2 is the AES-
CCMP encryption process.
Mechanism
WPA
WPA2
FRITZ!Box supports the AES encryption procedure as part of
the WPA2 mechanism, and the TKIP encryption procedure as
part of the WPA mechanism. This means that the FRITZ!Box
can be used in combination with any WLAN devices that also
support WPA2 with AES or WPA with TKIP.
Frequency Ranges
WLAN uses the frequency ranges at 2.4 GHz and 5 GHz as its
transmission range.
With the FRITZ!Box you can establish WLAN connections in ei-
ther the 2.4-GHz or the 5-GHz frequency range.
2.4-GHz Frequency Band
In the 2.4-GHz frequency band WLAN works in the same range
as Bluetooth, microwave devices and various other devices
like radio-controlled toys, garage-door openers and video
bridges. This means that interference may occur within
WLANs operated in the vicinity of such devices. Generally this
has adverse effects on the transmission rate, including abort-
ed connections.
FRITZ!Box 3370
Encryption
TKIP (Temporary Key Integrity Protocol)
TKIP
AES-CCMP
based on the extremely secure AES (Advanced
Encryption Standard) procedure. CCMP (Coun-
ter Mode with CBC-MAC Protocol) defines how
the AES procedure is applied to WLAN pack-
ets.
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