Cisco Catalyst 3750-E Series, Руководство по настройке программного обеспечения

Страница: 300 / 1414

10-16
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 10 Configuring IEEE 802.1x Port-Based Authentication
Understanding IEEE 802.1x Port-Based Authentication
You can view the AV pairs that are being sent by the switch by entering the debug radius accounting
privileged EXEC command. For more information about this command, see the Cisco IOS Debug
Command Reference, Release 12.2.
For more information about AV pairs, see RFC 3580, “IEEE 802.1x Remote Authentication Dial In User
Service (RADIUS) Usage Guidelines.”
802.1x Readiness Check
The 802.1x readiness check monitors 802.1x activity on all the switch ports and displays information
about the devices connected to the ports that support 802.1x. You can use this feature to determine if the
devices connected to the switch ports are 802.1x-capable. You use an alternate authentication such as
MAC authentication bypass or web authentication for the devices that do not support 802.1x
functionality.
This feature only works if the supplicant on the client supports a query with the NOTIFY EAP
notification packet. The client must respond within the 802.1x timeout value.
For information on configuring the switch for the 802.1x readiness check, see the “Configuring 802.1x
Readiness Check” section on page 10-38 .
802.1x Authentication with VLAN Assignment
The switch supports 802.1x authentication with VLAN assignment. After successful 802.1x
authentication of a port, the RADIUS server sends the VLAN assignment to configure the switch port.
The RADIUS server database maintains the username-to-VLAN mappings, assigning the VLAN based
on the username of the client connected to the switch port. You can use this feature to limit network
access for certain users.
Voice device authentication is supported with multidomain host mode in Cisco IOS Release
12.2(37)SE.In Cisco IOS Release 12.2(40)SE and later. When a voice device is authorized and the
RADIUS server returned an authorized VLAN, the voice VLAN on the port is configured to send and
Attribute[46] Acct-Session-Time Never Always Always
Attribute[49] Acct-Terminate-Cause Never Never Always
Attribute[61] NAS-Port-Type Always Always Always
1. The Framed-IP-Address AV pair is sent only if a valid Dynamic Host Control Protocol (DHCP) binding
exists for the host in the DHCP snooping bindings table.
Table 10-3 Accounting AV Pairs (continued)
Attribute Number AV Pair Name START INTERIM STOP