Chapter 7 Wireless LAN
AMG1302/AMG1202-TSeries User’s Guide
111
7.10.3.4 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.
The types of encryption you can choose depend on the type of authentication. (See
for information about this.)
For example, if the wireless network has a RADIUS server, you can choose
WPA
or
WPA2
. If users
do not log in to the wireless network, you can choose no encryption,
Static WEP
,
WPA-PSK
, or
WPA2-PSK
.
Usually, you should set up the strongest encryption that every device in the wireless network
supports. For example, suppose you have a wireless network with the AMG1302/AMG1202-TSeries
and you do not have a RADIUS server. Therefore, there is no authentication. Suppose the wireless
network has two devices. Device A only supports WEP, and device B supports WEP and WPA-PSK.
Therefore, you should set up
Static WEP
in the wireless network.
Note: It is recommended that wireless networks use
WPA-PSK
,
WPA
, or stronger
encryption. The other types of encryption are better than none at all, but it is still
possible for unauthorized wireless devices to figure out the original information
pretty quickly.
When you select
WPA2
or
WPA2-PSK
in your AMG1302/AMG1202-TSeries, you can also select an
option (
WPA compatible
) to support WPA as well. In this case, if some of the devices support WPA
and some support WPA2, you should set up
WPA2-PSK
or
WPA2
(depending on the type of
wireless network login) and select the
WPA compatible
option in the AMG1302/AMG1202-TSeries.
Many types of encryption use a key to protect the information in the wireless network. The longer
the key, the stronger the encryption. Every device in the wireless network must have the same key.
7.10.4 Signal Problems
Because wireless networks are radio networks, their signals are subject to limitations of distance,
interference and absorption.
Problems with distance occur when the two radios are too far apart. Problems with interference
occur when other radio waves interrupt the data signal. Interference may come from other radio
transmissions, such as military or air traffic control communications, or from machines that are
coincidental emitters such as electric motors or microwaves. Problems with absorption occur when
physical objects (such as thick walls) are between the two radios, muffling the signal.
Table 29
Types of Encryption for Each Type of Authentication
NO AUTHENTICATION
RADIUS SERVER
Weakest
No Security
WPA
Static WEP
WPA-PSK
Strongest
WPA2-PSK
WPA2
Summary of Contents for AMG1202-T series
Page 4: ...Contents Overview AMG1302 AMG1202 TSeries User s Guide 4 ...
Page 13: ...13 PART I User s Guide ...
Page 14: ...14 ...
Page 20: ...Chapter 1 Introduction AMG1302 AMG1202 TSeries User s Guide 20 ...
Page 28: ...Chapter 2 Introducing the Web Configurator AMG1302 AMG1202 TSeries User s Guide 28 ...
Page 61: ...Chapter 4 Tutorials AMG1302 AMG1202 TSeries User s Guide 61 Tutorial Advanced QoS Class Setup ...
Page 64: ...Chapter 4 Tutorials AMG1302 AMG1202 TSeries User s Guide 64 ...
Page 65: ...65 PART II Technical Reference ...
Page 66: ...66 ...
Page 72: ...Chapter 5 Connection Status and System Info Screens AMG1302 AMG1202 TSeries User s Guide 72 ...
Page 120: ...Chapter 7 Wireless LAN AMG1302 AMG1202 TSeries User s Guide 120 ...
Page 150: ...Chapter 10 Quality of Service QoS AMG1302 AMG1202 TSeries User s Guide 150 ...
Page 160: ...Chapter 11 Network Address Translation NAT AMG1302 AMG1202 TSeries User s Guide 160 ...
Page 172: ...Chapter 14 Filters AMG1302 AMG1202 TSeries User s Guide 172 ...
Page 194: ...Chapter 16 Parental Control AMG1302 AMG1202 TSeries User s Guide 194 ...
Page 200: ...Chapter 17 Certificate AMG1302 AMG1202 TSeries User s Guide 200 ...
Page 206: ...Chapter 19 Traffic Status AMG1302 AMG1202 TSeries User s Guide 206 ...
Page 208: ...Chapter 20 User Account AMG1302 AMG1202 TSeries User s Guide 208 ...
Page 212: ...Chapter 21 TR 069 Client AMG1302 AMG1202 TSeries User s Guide 212 ...
Page 216: ...Chapter 22 System Settings AMG1302 AMG1202 TSeries User s Guide 216 ...
Page 222: ...Chapter 24 Backup Restore AMG1302 AMG1202 TSeries User s Guide 222 ...
Page 234: ...Chapter 25 Remote Management AMG1302 AMG1202 TSeries User s Guide 234 ...
Page 238: ...Chapter 26 Diagnostic AMG1302 AMG1202 TSeries User s Guide 238 ...
Page 244: ...Chapter 27 Troubleshooting AMG1302 AMG1202 TSeries User s Guide 244 ...
Page 294: ...Appendix D Wireless LANs AMG1302 AMG1202 TSeries User s Guide 294 ...
Page 304: ...Appendix E IPv6 AMG1302 AMG1202 TSeries User s Guide 304 ...
Page 320: ...Index AMG1302 AMG1202 TSeries User s Guide 320 ...