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Chapter 7 Wireless LAN
P-660HW-Dx User’s Guide
107
• In a RADIUS server: this is a server used in businesses more than in homes.
If your AP does not provide a local user database and if you do not have a RADIUS server,
you cannot set up user names and passwords for your users.
Unauthorized 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.
Local user databases also have an additional limitation that is explained in the next section.
7.2.4 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 user 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 wireless client in the wireless
network supports. For example, suppose the AP does not have a local user database, and you
do not have a RADIUS server. Therefore, there is no user authentication. Suppose the wireless
network has two wireless clients. Device A only supports WEP, and device B supports WEP
and WPA. Therefore, you should set up
Static WEP
in the wireless network.
"
It is recommended that wireless networks use WPA-PSK, WPA, or stronger
encryption. IEEE 802.1x and WEP encryption are better than none at all, but it is
still possible for unauthorized devices to figure out the original information
pretty quickly.
It is not possible to use
WPA-PSK
,
WPA
or stronger encryption with a local
user database. In this case, it is better to set up stronger encryption with no
authentication than to set up weaker encryption with the local user database.
Table 31
Types of Encryption for Each Type of Authentication
NO AUTHENTICATION
RADIUS SERVER
Weakest
No Security
WPA
Static WEP
WPA-PSK
Strongest
WPA2-PSK
WPA2
Содержание P-660HW-DX
Страница 2: ......
Страница 7: ...Safety Warnings P 660HW Dx User s Guide 7...
Страница 8: ...Safety Warnings P 660HW Dx User s Guide 8...
Страница 10: ...Contents Overview P 660HW Dx User s Guide 10...
Страница 20: ...Table of Contents P 660HW Dx User s Guide 20...
Страница 26: ...List of Figures P 660HW Dx User s Guide 26...
Страница 31: ...31 PART I Introduction Introducing the ZyXEL Device 33 Introducing the Web Configurator 37...
Страница 32: ...32...
Страница 50: ...Chapter 2 Introducing the Web Configurator P 660HW Dx User s Guide 50...
Страница 51: ...51 PART II Wizards Wizard Setup for Internet Access 53 Bandwidth Management Wizard 67...
Страница 52: ...52...
Страница 66: ...Chapter 3 Wizard Setup for Internet Access P 660HW Dx User s Guide 66...
Страница 72: ...Chapter 4 Bandwidth Management Wizard P 660HW Dx User s Guide 72...
Страница 73: ...73 PART III Network WAN Setup 75 LAN Setup 93 Wireless LAN 105 Network Address Translation NAT Screens 129...
Страница 74: ...74...
Страница 92: ...Chapter 5 WAN Setup P 660HW Dx User s Guide 92...
Страница 141: ...141 PART IV Security Firewalls 143 Firewall Configuration 155 Content Filtering 177...
Страница 142: ...142...
Страница 162: ...Chapter 10 Firewall Configuration P 660HW Dx User s Guide 162 Figure 88 Firewall Edit Rule...
Страница 176: ...Chapter 10 Firewall Configuration P 660HW Dx User s Guide 176...
Страница 180: ...Chapter 11 Content Filtering P 660HW Dx User s Guide 180...
Страница 182: ...182...
Страница 186: ...Chapter 12 Static Route P 660HW Dx User s Guide 186...
Страница 202: ...Chapter 14 Dynamic DNS Setup P 660HW Dx User s Guide 202...
Страница 224: ...Chapter 16 Universal Plug and Play UPnP P 660HW Dx User s Guide 224...
Страница 225: ...225 PART VI Maintenance and Troubleshooting System 227 Logs 233 Tools 251 Diagnostic 257 Troubleshooting 259...
Страница 226: ...226...
Страница 232: ...Chapter 17 System P 660HW Dx User s Guide 232...
Страница 250: ...Chapter 18 Logs P 660HW Dx User s Guide 250...
Страница 256: ...Chapter 19 Tools P 660HW Dx User s Guide 256...
Страница 264: ...264...
Страница 270: ...Appendix A Product Specifications and Wall Mounting P 660HW Dx User s Guide 270 Figure 151 Masonry Plug and M4 Tap Screw...
Страница 330: ...Appendix F Internal SPTGEN P 660HW Dx User s Guide 330...
Страница 332: ...Appendix G Command Interpreter P 660HW Dx User s Guide 332...
Страница 344: ...Appendix J Splitters and Microfilters P 660HW Dx User s Guide 344...
Страница 350: ...Appendix L Legal Information P 660HW Dx User s Guide 350...
Страница 356: ...Appendix M Customer Support P 660HW Dx User s Guide 356...
Страница 364: ...Index P 660HW Dx User s Guide 364...