10-8
Catalyst 3750 SwitchSoftware Configuration Guide
OL-8550-09
Chapter10 Configuring IEEE 802.1x Port-Based Authentication
Understanding IEEE 802.1x Port-Based Authentication
Authentication Manager
In Cisco IOS Rel ease 12.2(46 )SE and earli er, you could not use the same authorization methods, including
CLI commands and messages, on this switch and also on other network devices, such as a Catalyst 6000.
You had to use separate authentication configurations. Cisco IOS Release 12.2(50)SE and later supports
the same authorization methods on all Catalyst switches in a network.
Cisco IOS Release 12.2(55)SE supports filtering verbose system messages from the authentication
manager. For details, see the “Authentication Manager CLI Commands” section on page10-10.
•Port-Based Authentication Methods, page10-8
•Per-User ACLs and Filter-Ids, page10-9
•Authentication Manager CLI Commands, page 10-10

Port-Based Authentication Methods

Table10-1 lists the authentication methods supported in these host modes:
•Single host–Only one data or voice host (client) can be authenticated on a port.
•Multiple host–Multiple data hosts can be authenticated on the same port. (If a port becomes
unauthorized in multiple-host mode, the switch denies network access to all of the attached clients.)
•Multidomain authentication (MDA) –Both a data device and voice device can be authenticated on
the same switch port. The port is divided into a data domain and a voice domain.
•Multiple authentication–Multiple hosts can authenticate on the data VLAN. This mode also allows
one client on the VLAN if a voice VLAN is configured.
Table10-1 802.1x Features
Authentication method
Mode
Single Host Multiple Host MDA1
Multiple
Authentication2
802.1x VLAN assignment
Per-user ACL
Filter-ID attribute
Downloadable
ACL3
Redirect URL 3
VLAN assignment
Per-user ACL
Filter-ID attribute
Downloadable
ACL4
Redirect URL 3
VLAN assignment
Per-user ACL3
Filter-Id attribute3
Downloadable
ACL3
Redirect URL3
Per-user ACL3
Filter-Id attribute3
Downloadable
ACL3
Redirect URL3
MAC authentication bypass VLAN assignment
Per-user ACL
Filter-ID attribute
Downloadable
ACL3
Redirect URL3
VLAN assignment
Per-user ACL
Filter-ID attribute
Downloadable
ACL3
Redirect URL3
VLAN assignment
Per-user ACL3
Filter-Id attribute3
Downloadable
ACL3
Redirect URL3
Per-user ACL3
Filter-Id attribute3
Downloadable
ACL3
Redirect URL3
Standalone web authentication4Proxy ACL, Filter-Id attribute, downloadable ACL2