Netgear FWAG114 FWAG114 Reference Manual - Page 163

Wireless Channels

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Reference Manual for the ProSafe Dual Band Wireless VPN Firewall FWAG114 When configured for 128-bit encryption, 802.11 products typically support four WEP Keys but some manufacturers support only one 128-bit key. The 128-bit WEP Key is expressed as 13 sets of two hexadecimal digits (0-9 and A-F). For example, "12 34 56 78 90 AB CD EF 12 34 56 78 90" is a 128-bit WEP Key. Table D-1: Encryption Key Sizes Encryption Key Size 64-bit (24+40) 128-bit (24+104) 152-bit (24+128) # of Hexadecimal Digits 10 26 32 Example of Hexadecimal Key Content 4C72F08AE1 4C72F08AE19D57A3FF6B260037 4C72F08AE19D57A3FF6B26003715DAC2 Note: Typically, 802.11 access points can store up to four 128-bit WEP Keys but some 802.11 client adapters can only store one. Therefore, make sure that your 802.11 access and client adapters configurations match. WEP Configuration Options The WEP settings must match on all 802.11 devices that are within the same wireless network as identified by the SSID. In general, if your mobile clients will roam between access points, then all of the 802.11 access points and all of the 802.11 client adapters on the network must have the same WEP settings. Note: Whatever keys you enter for an AP, you must also enter the same keys for the client adapter in the same order. In other words, WEP key 1 on the AP must match WEP key 1 on the client adapter, WEP key 2 on the AP must match WEP key 2 on the client adapter, etc. Note: The AP and the client adapters can have different default WEP Keys as long as the keys are in the same order. In other words, the AP can use WEP key 2 as its default key to transmit while a client adapter can use WEP key 3 as its default key to transmit. The two devices will communicate as long as the AP's WEP key 2 is the same as the client's WEP key 2 and the AP's WEP key 3 is the same as the client's WEP key 3. Wireless Channels The wireless frequencies used by 802.11a and 802.11b/g networks are different. These channel frequency options are discussed below. Wireless Networking Basics D-7

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Reference Manual for the ProSafe Dual Band Wireless VPN Firewall FWAG114
Wireless Networking Basics
D-7
When configured for 128-bit encryption, 802.11 products typically support four WEP Keys but
some manufacturers support only one 128-bit key. The 128-bit WEP Key is expressed as 13 sets of
two hexadecimal digits (0-9 and A-F). For example, “12 34 56 78 90 AB CD EF 12 34 56 78 90”
is a 128-bit WEP Key.
Table D-1:
Encryption Key Sizes
Note:
Typically, 802.11 access points can store up to four 128-bit WEP Keys but some 802.11
client adapters can only store one. Therefore, make sure that your 802.11 access and client
adapters configurations match.
WEP Configuration Options
The WEP settings must match on all 802.11 devices that are within the same wireless network as
identified by the SSID. In general, if your mobile clients will roam between access points, then all
of the 802.11 access points and all of the 802.11 client adapters on the network must have the same
WEP settings.
Note:
Whatever keys you enter for an AP, you must also enter the same keys for the client adapter
in the same order. In other words, WEP key 1 on the AP must match WEP key 1 on the client
adapter, WEP key 2 on the AP must match WEP key 2 on the client adapter, etc.
Note:
The AP and the client adapters can have different default WEP Keys as long as the keys are
in the same order. In other words, the AP can use WEP key 2 as its default key to transmit while a
client adapter can use WEP key 3 as its default key to transmit. The two devices will communicate
as long as the AP’s WEP key 2 is the same as the client’s WEP key 2 and the AP’s WEP key 3 is
the same as the client’s WEP key 3.
Wireless Channels
The wireless frequencies used by 802.11a and 802.11b/g networks are different. These channel
frequency options are discussed below.
Encryption Key Size
# of Hexadecimal Digits
Example of Hexadecimal Key Content
64-bit (24+40)
10
4C72F08AE1
128-bit (24+104)
26
4C72F08AE19D57A3FF6B260037
152-bit (24+128)
32
4C72F08AE19D57A3FF6B26003715DAC2