ZyXEL P-2812HNU-51c User Manual download pdf (Page 174)

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Chapter 7 Wireless LAN

P-2812HNU-51c User’s Guide

174

characters

; for example, 00A0C5000002 or 00:A0:C5:00:00:02. To get the MAC

address for each device in the wireless network, see the device’s User’s Guide or

other documentation.

You can use the MAC address filter to tell the P-2812HNU-51c which devices are

allowed or not allowed to use the wireless network. If a device is allowed to use

the wireless network, it still has to have the correct information (SSID, channel,

and security). If a device is not allowed to use the wireless network, it does not

matter if it has the correct information.

This type of security does not protect the information that is sent in the wireless

network. Furthermore, there are ways for unauthorized wireless devices to get the

MAC address of an authorized device. Then, they can use that MAC address to use

the wireless network.

7.11.3.3 User Authentication

Authentication is the process of verifying whether a wireless device is allowed to

use the wireless network. You can make every user log in to the wireless network

before they can use it. However, every device in the wireless network has to

support IEEE 802.1x to do this.

For wireless networks, you can store the user names and passwords for each user

in a RADIUS server. This is a server used in businesses more than in homes. If you

do not have a RADIUS server, you cannot set up user names and passwords for

your users.

Unauthorized wireless devices can still see the information that is sent in the

wireless network, even if they cannot use the wireless network. Furthermore,

there are ways for unauthorized wireless users to get a valid user name and

password. Then, they can use that user name and password to use the wireless

network.

7.11.3.4 Encryption

Wireless networks can use encryption to protect the information that is sent in the

wireless network. Encryption is like a secret code. If you do not know the secret

code, you cannot understand the message.

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.

1 2 ... 169 170 171 172 173 174 175 176 177 178 179 ... 521 522

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