ZyXEL Communications LTE5366 Series, Руководство пользователя

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Chapter 7 Wireless LAN
LTE5366 Series User’s Guide
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• Use the Advanced screen to allow intra-BSS networking and set the RTS/CTS Threshold ( Section 7.6 on
page 80 ).
• Use the QoS screen to ensure Quality of Service (QoS) in your wireless network ( Section 7.7 on page
81 ).
• Use the WPS screen to quickly set up a wireless network with strong security, without having to
configure security settings manually ( Section 7.8 on page 82 ).
• Use the WPS Station screen to add a wireless station using WPS ( Section 7.9 on page 83 ).
• Use the Scheduling screen to set the times your wireless LAN is turned on and off ( Section 7.10 on
page 84 ).
• Use the WDS screen to configure the LTE5366’s WDS settings ( Section 7.11 on page 85 ).
7.1.2 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.
1
A MAC address is
usually written using twelve hexadecimal characters
2
; for example, 00A0C5000002 or 00:A0:C5:00:00:02.
To get the MAC address for each wireless client, see the appropriate User’s Guide or other
documentation.
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.