![background image](http://html.mh-extra.com/html/zyxel-communications/vantage-cnm-2-0/vantage-cnm-2-0_user-manual_945619293.webp)
Vantage CNM 2.0 User’s Guide
296
Appendix I
Wireless LAN With IEEE 802.1x
As wireless networks become popular for both portable computing and corporate networks,
security is now a priority.
Security Flaws with IEEE 802.11
Wireless networks based on the original IEEE 802.11 have a poor reputation for safety. The
IEEE 802.11b wireless access standard, first published in 1999, was based on the MAC
address. As the MAC address is sent across the wireless link in clear text, it is easy to spoof
and fake. Even the WEP (Wire Equivalent Privacy) data encryption is unreliable as it can be
easily decrypted with current computer speed
Deployment Issues with IEEE 802.11
User account management has become a network administrator’s nightmare in a corporate
environment, as the IEEE 802.11b standard does not provide any central user account
management. User access control is done through manual modification of the MAC address
table on the access point. Although WEP data encryption offers a form of data security, you
have to reset the WEP key on the clients each time you change your WEP key on the access
point.
IEEE 802.1x
In June 2001, the IEEE 802.1x standard was designed to extend the features of IEEE 802.11 to
support extended authentication as well as providing additional accounting and control
features. It is supported by Windows XP and a number of network devices.
Advantages of the IEEE 802.1x
• User based identification that allows for roaming.
• Support for RADIUS (Remote Authentication Dial In User Service, RFC 2138, 2139) for
centralized user profile and accounting management on a network RADIUS server.
• Support for EAP (Extensible Authentication Protocol, RFC 2486) that allows additional
authentication methods to be deployed with no changes to the access point or the wireless
clients.
Содержание VANTAGE CNM 2.0 -
Страница 30: ...Vantage CNM 2 0 User s Guide 33 Chapter 1 Introducing Vantage ...
Страница 40: ...Vantage CNM 2 0 User s Guide 43 Chapter 2 GUI Introduction ...
Страница 66: ...Vantage CNM 2 0 User s Guide 69 Chapter 4 Configuration Select Device BB General ...
Страница 78: ...Vantage CNM 2 0 User s Guide 81 Chapter 5 Configuration LAN ...
Страница 96: ...Vantage CNM 2 0 User s Guide 99 Chapter 7 Configuration DMZ ...
Страница 126: ...Vantage CNM 2 0 User s Guide 129 Chapter 8 Configuration WAN ...
Страница 140: ...Vantage CNM 2 0 User s Guide 143 Chapter 9 Configuration NAT ...
Страница 144: ...Vantage CNM 2 0 User s Guide 147 Chapter 10 Configuration Static Route ...
Страница 162: ...Vantage CNM 2 0 User s Guide 165 Chapter 11 Configuration VPN ...
Страница 182: ...Vantage CNM 2 0 User s Guide 185 Chapter 12 Configuration Firewall ...
Страница 188: ...Vantage CNM 2 0 User s Guide 191 Chapter 13 Configuration Device Log ...
Страница 236: ...Vantage CNM 2 0 User s Guide 239 Chapter 18 Other System Screens ...
Страница 239: ...Vantage CNM 2 0 User s Guide Chapter 19 Monitor Alarms 242 Figure 132 Monitor Current Alarms ...
Страница 242: ...Vantage CNM 2 0 User s Guide 245 Chapter 19 Monitor Alarms ...
Страница 248: ...Vantage CNM 2 0 User s Guide 251 Chapter 20 Other Monitor Screens ...
Страница 254: ...Vantage CNM 2 0 User s Guide 257 Figure 151 WFTPD Pro Log On ...
Страница 266: ...Vantage CNM 2 0 User s Guide 269 ...
Страница 274: ...Vantage CNM 2 0 User s Guide 277 ...
Страница 286: ...Vantage CNM 2 0 User s Guide 289 ...
Страница 288: ...Vantage CNM 2 0 User s Guide 291 ...
Страница 291: ...Vantage CNM 2 0 User s Guide 294 Figure 181 ESS Provides Campus Wide Coverage ...
Страница 292: ...Vantage CNM 2 0 User s Guide 295 ...
Страница 312: ...Vantage CNM 2 0 User s Guide 315 ...