Allied Telesis AT-WA7500 - Manual (Page 162)

6 - Configuring Security
162
Configuring
WEP 64/128/
152 Security
Note
If you configure WEP 64/128/152 security for a radio, you cannot
also enable 802.1x authentication for that radio. 802.1x security
uses rotating WEP keys that are automatically generated.
In your 802.11b or 802.11a network, you can configure static WEP keys to
provide security between the access points and the wireless end
devices. To use static WEP keys, your radios must support WEP
encryption. All access points and wireless end devices on a particular
network must use the same WEP encryption type and the same WEP
transmit key. You should periodically change this WEP transmit key to
prevent an unauthorized person with a sniffing tool from monitoring
your network and discovering the WEP key.
Since, static WEP keys can be difficult to update, the AT-WA7500 access
point and other Allied Telesyn products let you enter up to four WEP
keys, and then pick a WEP transmit key (1-4). It is easier to rotate the WEP
transmit key than to individually change all the WEP keys.
‰ WEP 64 has four 40-bit encryption keys and one 24-bit
initialization vector (IV) key. Enter five ASCII characters or five hex
pairs for the WEP keys.
‰ WEP 128 provides a higher degree of encryption protection. It has
four 104-bit encryption keys and one 24-bit IV key. Enter 13 ASCII
characters or hex pairs.
‰ WEP 152 provides the highest degree of encryption protection. It
has four 128-bit encryption keys and one 24-bit IV key. Enter 16
ASCII characters or hex pairs.