ZyXEL Communications 662HW Series - Manual (Page 46)

Prestige 662H/HW Series User’s Guide
Chapter 1 Getting To Know Your Prestige 46
Content Filtering
Content filtering allows you to block access to forbidden Internet web sites, schedule when the
Prestige should perform the filtering and give trusted LAN IP addresses unfiltered Internet
access.
Content Access Control
The Prestige can control access privileges to website and services through Content Access
Control (CAC). Content Access Control is defined as the ability for a LAN administrator to
control a LAN user’s Internet access privileges. The administrator can create a login name and
password for each user on the network. Each user must log into the system before they can
gain access to the Internet. Each account will have specific access restrictions.
Anti-Virus Packet Scan
With the anti-virus packet scan, your Prestige detects and removes viruses in network packets
(SMTP, POP3, HTTP and FTP). This prevents viruses from infecting computer(s) on the
network. You can set the Prestige to log and warn you of any viruses detected. You can also
perform online update of the packet scan on the Prestige.
IEEE 802.11g Wireless LAN
IEEE 802.11g is fully compatible with the IEEE 802.11b standard. This means an IEEE
802.11b radio card can interface directly with an IEEE 802.11g access point (and vice versa) at
11 Mbps or lower depending on range. IEEE 802.11g has several intermediate rate steps
between the maximum and minimum data rates. The IEEE 802.11g data rate and modulation
are as follows:
Table 2 IEEE802.11g
DATA RATE (MBPS) MODULATION
1 DBPSK (Differential Binary Phase Shift Keyed)
2 DQPSK (Differential Quadrature Phase Shift Keying )
5.5 / 11 CCK (Complementary Code Keying)
6/9/12/18/24/36/48/54 OFDM (Orthogonal Frequency Division Multiplexing)
Note: The Prestige 662HW may be prone to RF (Radio Frequency)
interference from other 2.4 GHz devices such as microwave ovens, wireless
phones, Bluetooth enabled devices, and other wireless LANs.