MAC Address Filter
Every device that can use a wireless network has a unique identification number, called a
MAC address.1 A MAC address is usually written using twelve hexadecimal characters2; 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 LTE Device 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.
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 0-9, A-F, and a-f.
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 using 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.
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.
The types of encryption you can choose depend on the type of authentication.
Figure 5-10
Types of Encryption for Each Type of Authentication
You can choose no encryption,
WPA-PSK
, or
WPA2-PSK
.
Usually, you should set up the strongest encryption that every device in the wireless network
supports. Suppose the wireless network has two devices. Device A only supports WPA-PSK,
LTE CPE B2368
User Guide
5 Wireless
Issue 03 (2019-01-31)
Copyright © Huawei Technologies Co., Ltd.
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