What You Should Know - ZyXEL Communications NBG4615 User Manual

Chapter 15 Wireless LAN
• Use the Advanced screen to allow intra-BSS networking and set the RTS/CTS Threshold
15.5 on page
• Use the QoS screen to ensure Quality of Service (QoS) in your wireless network
page 137).
• Use the WPS screen to quickly set up a wireless network with strong security, without having to
configure security settings manually
• Use the WPS Station screen to add a wireless station using WPS
• Use the Scheduling screen to set the times your wireless LAN is turned on and off
on page 140).
• Use the WDS screen to configure Wireless Distribution System on your NBG4615
on page 141).

15.1.2 What You Should Know

Every wireless network must follow these basic guidelines.
• Every wireless client in the same wireless network must use the same SSID.
The SSID is the name of the wireless network. It stands for Service Set IDentity.
• If two wireless networks overlap, they should use different channels.
Like radio stations or television channels, each wireless network uses a specific channel, or
frequency, to send and receive information.
• Every wireless client in the same wireless network must use security compatible with the AP.
Security stops unauthorized devices from using the wireless network. It can also protect the
information that is sent in the wireless network.
Wireless Security Overview
The following sections introduce different types of wireless security you can set up in the wireless
network.
SSID
Normally, the AP acts like a beacon and regularly broadcasts the SSID in the area. You can hide the
SSID instead, in which case the AP does not broadcast the SSID. In addition, you should change
the default SSID to something that is difficult to guess.
This type of security is fairly weak, however, because there are ways for unauthorized devices to
get the SSID. In addition, unauthorized devices can still see the information that is sent in the
wireless network.
MAC Address Filter
Every wireless client has a unique identification number, called a MAC address.
usually written using twelve hexadecimal characters
1. Some wireless devices, such as scanners, can detect wireless networks but cannot use wireless networks. These kinds
of wireless devices might not have MAC addresses.
2. Hexadecimal characters are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
126
136).
(Section 15.7 on page 137).
(Section 15.8 on page
2
; for example, 00A0C5000002 or
(Section
(Section 15.6 on
139).
(Section 15.9
(Section 15.10
1
A MAC address is
NBG4615 User's Guide