Chapter 5 Wireless LAN
P-2302HWUDL-P1 Series User’s Guide
81
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.
5.2.4 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 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 ZyXEL Device. The
ZyXEL Device does not have a local user database, 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. Therefore, you should set up
Static WEP
in the wireless network.
"
It is recommended that wireless networks use WPA-PSK, WPA, or stronger
encryption.
When you select
WPA2
or
WPA2-PSK
in your ZyXEL Device, 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 ZyXEL Device.
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.
Table 28
Types of Encryption for Each Type of Authentication
NO AUTHENTICATION
RADIUS SERVER
Weakest
None
Static WEP
WPA-PSK
WPA
Strongest WPA2-PSK
WPA2
Содержание Network Device P-2302
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Страница 8: ...Safety Warnings P 2302HWUDL P1 Series User s Guide 8 ...
Страница 10: ...Contents Overview P 2302HWUDL P1 Series User s Guide 10 Appendices and Index 285 ...
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Страница 46: ...Chapter 2 Introducing the Web Configurator P 2302HWUDL P1 Series User s Guide 46 ...
Страница 66: ...Chapter 3 Wizard Setup P 2302HWUDL P1 Series User s Guide 66 ...
Страница 77: ...77 PART II Network Wireless LAN 79 WAN 95 LAN 105 NAT 117 ...
Страница 78: ...78 ...
Страница 94: ...Chapter 5 Wireless LAN P 2302HWUDL P1 Series User s Guide 94 ...
Страница 116: ...Chapter 7 LAN P 2302HWUDL P1 Series User s Guide 116 ...
Страница 125: ...125 PART III VoIP SIP 127 Phone 141 Phone Book 155 PSTN Line 159 VoIP Trunking 161 ...
Страница 126: ...126 ...
Страница 136: ...Chapter 9 SIP P 2302HWUDL P1 Series User s Guide 136 Figure 74 VoIP SIP SIP Settings Advanced ...
Страница 154: ...Chapter 10 Phone P 2302HWUDL P1 Series User s Guide 154 ...
Страница 176: ...Chapter 13 VoIP Trunking P 2302HWUDL P1 Series User s Guide 176 ...
Страница 177: ...177 PART IV Security Firewall 179 Content Filter 187 ...
Страница 178: ...178 ...
Страница 186: ...Chapter 14 Firewall P 2302HWUDL P1 Series User s Guide 186 ...
Страница 190: ...Chapter 15 Content Filter P 2302HWUDL P1 Series User s Guide 190 ...
Страница 192: ...192 ...
Страница 196: ...Chapter 16 Static Route P 2302HWUDL P1 Series User s Guide 196 ...
Страница 228: ...Chapter 19 UPnP P 2302HWUDL P1 Series User s Guide 228 ...
Страница 250: ...Chapter 21 File Sharing P 2302HWUDL P1 Series User s Guide 250 ...
Страница 251: ...251 PART VI Maintanence and Troubleshooting System 253 Logs 261 Tools 273 Troubleshooting 279 ...
Страница 252: ...252 ...
Страница 260: ...Chapter 22 System P 2302HWUDL P1 Series User s Guide 260 ...
Страница 272: ...Chapter 23 Logs P 2302HWUDL P1 Series User s Guide 272 ...
Страница 278: ...Chapter 24 Tools P 2302HWUDL P1 Series User s Guide 278 ...
Страница 286: ...286 ...
Страница 292: ...Appendix A Product Specifications P 2302HWUDL P1 Series User s Guide 292 ...
Страница 322: ...Appendix E SIP Passthrough P 2302HWUDL P1 Series User s Guide 322 ...
Страница 346: ...Appendix H Legal Information P 2302HWUDL P1 Series User s Guide 346 ...