Wireless Security Overview; Ssid; Mac Address Filter - ZyXEL Communications NBG410W3G User Manual
3g wireless router
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Also See for NBG410W3G:
- Quick start manual (88 pages) ,
- Specifications (2 pages) ,
- User manual (200 pages)
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Chapter 8 Wi-Fi
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.
See the WLAN appendix for more detailed information on WLANs.
8.2 Wireless Security Overview
The following sections introduce different types of wireless security you can set up in the
wireless network.
8.2.1 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.
8.2.2 MAC Address Filter
Every wireless client has a unique identification number, called a MAC address.
address is usually written using twelve hexadecimal characters
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.
148
1
A MAC
2
; for example, 00A0C5000002
NBG410W3G Series User's Guide
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