Chapter 7 Wireless LAN
P-660HWP-D1 User’s Guide
106
This type of security does not protect the information that is sent in the wireless network.
Furthermore, there are ways for unauthorized devices to get the MAC address of an authorized
wireless client. Then, they can use that MAC address to use the wireless network.
7.3.3 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. This is called user authentication. However, every wireless client in the wireless network
has to support IEEE 802.1x to do this.
For wireless networks, there are two typical places to store the user names and passwords for
each user.
• In the AP: this feature is called a local user database or a local database.
• 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.
7.3.4 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 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.
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
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Страница 7: ...Safety Warnings P 660HWP D1 User s Guide 7...
Страница 8: ...Safety Warnings P 660HWP D1 User s Guide 8...
Страница 10: ...Contents Overview P 660HWP D1 User s Guide 10...
Страница 20: ...Table of Contents P 660HWP D1 User s Guide 20...
Страница 26: ...List of Figures P 660HWP D1 User s Guide 26...
Страница 31: ...31 PART I Introduction Introducing the P 660HWP D1 33 Introducing the Web Configurator 41...
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Страница 39: ...Chapter 1 Introducing the P 660HWP D1 P 660HWP D1 User s Guide 39 Figure 7 P 660HWP D1 with ISDN...
Страница 40: ...Chapter 1 Introducing the P 660HWP D1 P 660HWP D1 User s Guide 40...
Страница 54: ...Chapter 2 Introducing the Web Configurator P 660HWP D1 User s Guide 54 Figure 19 System General...
Страница 55: ...55 PART II Wizards Wizard Setup for Internet Wireless Access 57 Bandwidth Management Wizard 69...
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Страница 72: ...72...
Страница 90: ...Chapter 5 WAN Setup P 660HWP D1 User s Guide 90...
Страница 147: ...147 PART IV Security Firewalls 149 Firewall Configuration 161 Content Filtering 183 Certificates 187...
Страница 148: ...148...
Страница 168: ...Chapter 11 Firewall Configuration P 660HWP D1 User s Guide 168 Figure 93 Firewall Edit Rule...
Страница 182: ...Chapter 11 Firewall Configuration P 660HWP D1 User s Guide 182...
Страница 186: ...Chapter 12 Content Filtering P 660HWP D1 User s Guide 186...
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Страница 214: ...Chapter 14 Static Route P 660HWP D1 User s Guide 214...
Страница 230: ...Chapter 16 Dynamic DNS Setup P 660HWP D1 User s Guide 230...
Страница 242: ...Chapter 17 Remote Management Configuration P 660HWP D1 User s Guide 242...
Страница 254: ...Chapter 18 Universal Plug and Play UPnP P 660HWP D1 User s Guide 254...
Страница 255: ...255 PART VI Maintenance and Troubleshooting System 257 Logs 263 Tools 281 Diagnostic 287 Troubleshooting 289...
Страница 256: ...256...
Страница 262: ...Chapter 19 System P 660HWP D1 User s Guide 262...
Страница 280: ...Chapter 20 Logs P 660HWP D1 User s Guide 280...
Страница 286: ...Chapter 21 Tools P 660HWP D1 User s Guide 286...
Страница 296: ...296...
Страница 340: ...Appendix D IP Subnetting P 660HWP D1 User s Guide 340...
Страница 344: ...Appendix E Command Interpreter P 660HWP D1 User s Guide 344...
Страница 360: ...Appendix H Legal Information P 660HWP D1 User s Guide 360...
Страница 366: ...Appendix I Customer Support P 660HWP D1 User s Guide 366...
Страница 374: ...Index P 660HWP D1 User s Guide 374...