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P-660H/HW/W-T Series User’ Guide
Appendix L
426
• Access-Challenge
Sent by a RADIUS server requesting more information in order to allow access. The
access point sends a proper response from the user and then sends another Access-
Request message.
The following types of RADIUS messages are exchanged between the access point and the
RADIUS server for user accounting:
• Accounting-Request
Sent by the access point requesting accounting.
• Accounting-Response
Sent by the RADIUS server to indicate that it has started or stopped accounting.
In order to ensure network security, the access point and the RADIUS server use a shared
secret key, which is a password, they both know. The key is not sent over the network. In
addition to the shared key, password information exchanged is also encrypted to protect the
network from unauthorized access.
Types of Authentication
This appendix discusses some popular authentication types:
EAP-MD5
,
EAP-TLS
,
EAP-
TTLS
,
PEAP
and
LEAP
.
The type of authentication you use depends on the RADIUS server or the AP. Consult your
network administrator for more information.
EAP-MD5 (Message-Digest Algorithm 5)
MD5 authentication is the simplest one-way authentication method. The authentication server
sends a challenge to the wireless station. The wireless station ‘proves’ that it knows the
password by encrypting the password with the challenge and sends back the information.
Password is not sent in plain text.
However, MD5 authentication has some weaknesses. Since the authentication server needs to
get the plaintext passwords, the passwords must be stored. Thus someone other than the
authentication server may access the password file. In addition, it is possible to impersonate an
authentication server as MD5 authentication method does not perform mutual authentication.
Finally, MD5 authentication method does not support data encryption with dynamic session
key. You must configure WEP encryption keys for data encryption.
Содержание P-660H - VERSION 3.40
Страница 1: ...P 660H HW W T Series ADSL 2 Gateway User s Guide Version 3 40 6 2005...
Страница 9: ...P 660H HW W T Series User Guide 9 Customer Support...
Страница 31: ...P 660H HW W T Series User Guide 31 List of Figures...
Страница 37: ...P 660H HW W T Series User Guide 37 List of Tables...
Страница 41: ...P 660H HW W T Series User Guide 41 Introduction to DSL...
Страница 61: ...P 660H HW W T Series User Guide 61 Chapter 3 Wizard Setup for Internet Access...
Страница 89: ...P 660H HW W T Series User Guide 89 Chapter 5 Wireless LAN...
Страница 131: ...P 660H HW W T Series User Guide 131 Chapter 10 Firewalls...
Страница 161: ...P 660H HW W T Series User Guide 161 Chapter 13 Remote Management Configuration...
Страница 175: ...P 660H HW W T Series User Guide 175 Chapter 14 Universal Plug and Play UPnP...
Страница 181: ...P 660H HW W T Series User Guide 181 Chapter 15 Logs Screens...
Страница 195: ...P 660H HW W T Series User Guide 195 Chapter 16 Media Bandwidth Management Advanced Setup...
Страница 207: ...P 660H HW W T Series User Guide 207 Chapter 17 Maintenance...
Страница 217: ...P 660H HW W T Series User Guide 217 Chapter 19 Menu 1 General Setup...
Страница 221: ...P 660H HW W T Series User Guide 221 Chapter 20 Menu 2 WAN Backup Setup...
Страница 225: ...P 660H HW W T Series User Guide 225 Chapter 21 Menu 3 LAN Setup...
Страница 229: ...P 660H HW W T Series User Guide 229 Chapter 22 Wireless LAN Setup...
Страница 235: ...P 660H HW W T Series User Guide 235 Chapter 23 Internet Access...
Страница 249: ...P 660H HW W T Series User Guide 249 Chapter 25 Static Route Setup...
Страница 253: ...P 660H HW W T Series User Guide 253 Chapter 26 Bridging Setup...
Страница 269: ...P 660H HW W T Series User Guide 269 Chapter 27 Network Address Translation NAT...
Страница 285: ...P 660H HW W T Series User Guide 285 Chapter 29 Filter Configuration...
Страница 305: ...P 660H HW W T Series User Guide 305 Chapter 32 System Information and Diagnosis...
Страница 317: ...P 660H HW W T Series User Guide 317 Chapter 33 Firmware and Configuration File Maintenance...
Страница 323: ...P 660H HW W T Series User Guide 323 Chapter 34 System Maintenance...
Страница 327: ...P 660H HW W T Series User Guide 327 Chapter 35 Remote Management...
Страница 337: ...P 660H HW W T Series User Guide 337 Chapter 36 IP Policy Routing...
Страница 341: ...P 660H HW W T Series User Guide 341 Chapter 37 Call Scheduling...
Страница 353: ...P 660H HW W T Series User Guide 353 Chapter 38 Troubleshooting Figure 232 Security Setting ActiveX Controls...
Страница 357: ...P 660H HW W T Series User Guide 357 Appendix A...
Страница 359: ...P 660H HW W T Series User Guide 359 Appendix B...
Страница 383: ...P 660H HW W T Series User Guide 383 Appendix D...
Страница 387: ...P 660H HW W T Series User Guide 387 Appendix F...
Страница 393: ...P 660H HW W T Series User Guide 393 Appendix G...
Страница 397: ...P 660H HW W T Series User Guide 397 Appendix H...
Страница 400: ...P 660H HW W T Series User Guide Appendix I 400...
Страница 401: ...P 660H HW W T Series User Guide 401 Appendix I...
Страница 455: ...P 660H HW W T Series User Guide 455 Appendix M...