User Manual

3e-528 Wireless Video Server Chapter 1: Introduction
8 29000142-001 A
3e-528 Wireless Video Server Chapter 1: Introduction
29000142-001 A 9
SSID
The Service Set ID (SSID) is a string used to dene 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 discover the AP. SSID
broadcasting can be disabled in the 3e-528 setup menus.
WEP
WEP is an older encryption standard that has been superseded by
stronger encryption options. If the 3e-528 is congured with WEP encryp-
tion, it is compatible with any 802.11b PC card congured for WEP.
WPA with TKIP/ AES-CCMP
WPA, an interim standard developed by the WiFi Alliance, combines
several technologies. It includes the use of the 802.1x standard and the
Extensible Authentication Protocol (EAP). In addition, it uses, for encryp-
tion, the Temporal Key Integrity Protocol (TKIP) and WEP 128-bit encryp-
tion keys. Finally, a message integrity check (MIC) is used to prevent an
attacker from capturing and altering or forging data packets. In addition,
it can employ a form of AES called AES-CCMP. The 3e-528 allows the user
to congure.
WPA is a subset of the 802.11i standard and is expected to maintain
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-528. 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 purchase the 3eTI ad-
vanced Crypto Client software (3e-010F) for each client that will be in-
cluded in the WLAN. We sell this software with the 3e-110 PC Card.
The 3e-528 uses AES-CCMP in WPA mode and AES-ECB (or 3DES) for
FIPS 140-2 mode and for bridging.