ZyXEL Communications P-334WT Support Notes page 43

Security FAQ
1. How do I secure the data across an Access Point's radio link?
2. What is WEP ?
3. What is the difference between 40-bit and 64-bit WEP ?
4. What is a WEP key ?
5. Will 128-bit WEP communicate with 64-bit WEP ?
6. Can the SSID be encrypted ?
7. By turning off the broadcast of SSID, can someone still sniff the SSID ?
8. What are Insertion Attacks?
9. What is Wireless Sniffer ?
10. What is the difference between Open System and Shared Key of Authentication Type ?
11. What is 802.1x ?
12. What is the difference between force-authorized, force-unauthorized and auto?
13. What is AAA ?
14. What is RADIUS ?
Basic FAQ
1. What is a Wireless LAN ?
Wireless LANs provide all the functionality of wired LANs, without the need for physical connections
(wires). Data is modulated onto a radio frequency carrier and transmitted through the ether. Typical bit-
rates are 11Mbps and 54Mbps, although in practice data throughput is half of this. Wireless LANs can
be formed simply by equipping PC's with wireless NICs. If connectivity to a wired LAN is required an
Access Point (AP) is used as a bridging device. AP's are typically located close to the centre of the
wireless client population.
2. What are the advantages of Wireless LANs ?
a. Mobility:
Wireless LAN systems can provide LAN users with access to real-time information anywhere in their
organization. This mobility supports productivity and service opportunities not possible with wired
networks.
b. Installation Speed and Simplicity:
Installing a wireless LAN system can be fast and easy and can eliminate the need to pull cable through
walls and ceilings.