Bedienungsanleitung ZyXEL LTE3316 Series (Seite 78 von 235) (Englisch)

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Chapter 6 Wireless

LTE Series User’s Guide

Vanishing Point (which you know was made in 1971) you could use “70dodchal71vanpoi” as your

security key.

The following sections introduce different types of WiFi security you can set up in the WiFi network.

6.8.3.1 SSID

Normally, the Zyxel Device acts like a beacon and regularly broadcasts the SSID in the area. You can

hide the SSID instead, in which case the Zyxel Device 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 WiFi devices to get

the SSID. In addition, unauthorized WiFi devices can still see the information that is sent in the WiFi

network.

6.8.3.2 MAC Address Filter

Every device that can use a WiFi network has a unique identification number, called a MAC address.

MAC address is usually written using twelve hexadecimal characters

; for example, 00A0C5000002 or

00:A0:C5:00:00:02. To get the MAC address for each device in the WiFi network, see the device’s User’s

Guide or other documentation.

You can use the MAC address filter to tell the Zyxel Device which devices are allowed or not allowed to

use the WiFi network. If a device is allowed to use the WiFi network, it still has to have the correct

information (SSID, channel, and security). If a device is not allowed to use the WiFi 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 WiFi network. Furthermore, there

are ways for unauthorized WiFi devices to get the MAC address of an authorized device. Then, they can

use that MAC address to use the WiFi network.

6.8.3.3 User Authentication

Authentication is the process of verifying whether a WiFi device is allowed to use the WiFi network. You

can make every user log in to the WiFi network before using it. However, every device in the WiFi

network has to support IEEE 802.1x to do this.

For WiFi 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 WiFi devices can still see the information that is sent in the WiFi network, even if they

cannot use the WiFi network. Furthermore, there are ways for unauthorized WiFi users to get a valid user

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

6.8.3.4 Encryption

WiFi networks can use encryption to protect the information that is sent in the WiFi 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 WiFi networks but cannot use WiFi 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.

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