Understanding WEP/WPA Security Options
The following elaborate WEP/WPA security options.
Field
Description
Network
Authentication
You have two authentication options.
• Open System:
No authentication is imposed to the AG-3621. However, if the 802.1x
option is configured, authentication of connections can be performed
by a RADIUS server.
• Shared: this is for shared key authentication. Data is encrypted.
Encryption Strength
You can select the following data encryption options: Disabled
64- 128- or 152-bit WEP With Open System Authentication and 64-
128- or 152-bit WEP Data Encryption with Shared Key authentication
Security Encryption
(WEP) Keys
WEP enabled, you can manually enter the four data encryption keys or
enable Passphrase to generate the keys automatically. These values
must be matched between all Clients and access points at your LAN
(key 1 must be the same for all, key 2 must be the same for all, etc.)
Two ways to create WEP encryption keys:
• Passphrase.
Passphrase functions as automatically case-sensitive characters.
However not all wireless adapters support passphrase key generation.
• Manual. These values are not case sensitive. 64-bit WEP: enter 10
hexadecimal digits (any combination of 0-9, a-f, or A-F). 128-bit WEP:
enter 26 hexadecimal digits (any combination of 0-9, a-f, or A-F).
152-bit WEP: enter 32 hexadecimal digits (any combination of 0-9, a-f,
or A-F).
WPA-PSK (Wi-Fi
Protected Access
Pre-Shared Key)
WPA Pre-Shared-Key uses a pre-shared key to perform the
authentication and generate the initial data encryption keys. Then, it
dynamically varies the encryption key. It uses Temporal Key Integrity
Protocol (TKIP) for encryption keys. However not all wireless adapters
support WPA. Furthermore, client software is required on the client.
Windows XP and Windows 2000 with Service Pack 3 do include the
client software that supports WPA. Nevertheless, the wireless adapter
hardware and driver must also support WPA.
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