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Catalyst 2960 Switch Software Configuration Guide
OL-8603-04
Chapter 9 Configuring IEEE 802.1x Port-Based Authentication
Understanding IEEE 802.1x Port-Based Authentication
• IEEE 802.1x Accounting, page 9-8
• IEEE 802.1x Accounting Attribute-Value Pairs, page 9-8
• Using IEEE 802.1x Authentication with VLAN Assignment, page 9-9
• Using IEEE 802.1x Authentication with Guest VLAN, page 9-11
• Using IEEE 802.1x Authentication with Restricted VLAN, page 9-12
• Using IEEE 802.1x Authentication with Inaccessible Authentication Bypass, page 9-13
• Using IEEE 802.1x Authentication with Voice VLAN Ports, page 9-14
• Using IEEE 802.1x Authentication with Port Security, page 9-14
• Using IEEE 802.1x Authentication with Wake-on-LAN, page 9-15
• Using IEEE 802.1x Authentication with MAC Authentication Bypass, page 9-16
• Using Network Admission Control Layer 2 IEEE 802.1x Validation, page 9-17
• Using Web Authentication, page 9-17
Device Roles
With IEEE 802.1x port-based authentication, the devices in the network have specific roles, as shown
in Figure 9-1.
Figure 9-1 IEEE 802.1x Device Roles
• Client—the device (workstation) that requests access to the LAN and switch services and responds
to requests from the switch. The workstation must be running IEEE 802.1x-compliant client
software such as that offered in the Microsoft Windows XP operating system. (The client is the
supplicant in the IEEE 802.1x standard.)
Note To resolve Windows XP network connectivity and IEEE 802.1x authentication issues, read
the Microsoft Knowledge Base article at this URL:
http://support.microsoft.com/support/kb/articles/Q303/5/97.ASP
• Authentication server—performs the actual authentication of the client. The authentication server
validates the identity of the client and notifies the switch whether or not the client is authorized to
access the LAN and switch services. Because the switch acts as the proxy, the authentication service
is transparent to the client. In this release, the RADIUS security system with Extensible
Authentication Protocol (EAP) extensions is the only supported authentication server. It is available
101229
Workstations
(clients)
Authentication
server
(RADIUS)
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