3e-525A Wireless Access Point
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SSID
The Service Set ID (SSID) is a string used to define a common roam-
ing domain among multiple wireless access points. Different SSIDs on
access points can enable overlapping wireless networks. The SSID can
act as a basic password without which the client cannot connect to the
network. However, this is easily overridden by allowing the wireless AP
to broadcast the SSID, which means any client can associate with the AP.
SSID broadcasting can be disabled in the 3e-525A setup menus if you're
configuring to use WEP encryption. AES and 3DES always broadcast but
are so secure that 'shared key" is not necessary.
WEP
WEP is an older encryption standard but is preferable to no encryp-
tion. When using WEP, 802.1x can be used to increase security. If the
3e-525A is configured with WEP encryption, it is compatible with any
802.11b PC Card configured for WEP.
WPA with TKIP/ AES-CCMP
WPA, an interim standard developed by the WiFi Alliance, combines
several technologies that address known 802.11x security vulnerabilities.
It provides an affordable, scalable solution for protecting existing corpo-
rate WLANs without the additional expense of VPN/firewall technology.
It includes the use of the 802.1x standard and the Extensible Authentica-
tion Protocol (EAP). In addition, it uses, for encryption, the Temporal
Key Integrity Protocol (TKIP) and WEP 128-bit encryption keys. Finally, a
message integrity check (MIC) is used to prevent an attacker from captur-
ing and altering or forging data packets. In addition, it can employ a form
of AES called AES-CCMP. The WAB-1000 allows the user to configure
Encryption type to allow either TKIP clients, AES-CCMP clients, or a mix
of both.
WPA is a subset of the draft 802.11i standard and is expected to main-
tain forward compatibility.
AES and 3DES
The Advanced Encryption Standard (AES) was selected by National
Institute of Standards and Technology (NIST) in October 2000 as an up-
grade from the previous DES standard. AES uses a 128-bit block cipher
algorithm and encryption technique for protecting computerized infor-
mation. It has the ability to use even larger 192-bit and 256-bit keys, if
desired.
3DES is also incorporated on the 3e-525A . 3DES is modeled on the
older DES standard but encrypts data three times over. Triple-DES uses
more CPU resources than AES because of the triple encryption.
If you intend to use AES or 3DES, you must enable use by purchasing
the 3eTI advanced Crypto Client software (3e-010F) for each client that
Summary of Contents for 3e-525A
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