Configuring 802.1X and Port-Based Security 537
Configuring Authentication Server Filter Assignments
To enable filter assignment by an external server, the following conditions 
must be true:
1
The port that the host is connected to must be enabled for MAC-based 
port access control by using the following command in Interface Config 
mode:
dot1x port-control mac-based
2
The RADIUS or 802.1X server must specify the policy to assign.
For example, if the DiffServ policy to assign is named internet_access, 
include the following attribute in the RADIUS or 802.1X server 
configuration:
Filter-id = “internet_access”
3
The DiffServ policy specified in the attribute must already be configured 
on the switch, and the policy names must be identical.
For information about configuring a DiffServ policy, see "DiffServ 
Configuration Examples" on page 1107. The example "Providing Subnets 
Equal Access to External Network" on page 1107, describes how to 
configure a policy named internet_access.
NOTE: If the policy specified within the server attribute does not exist on the 
switch, authentication will fail.