Administrator Guide

Configuring the port number
You can configure the port number on which the NAS receives CoA or DM requests.
This setting enables you to specify an optional port number on which to receive CoA or DM requests. The default value is 3799.
Enter the following command to configure the port number:
port port-number
The range for the port number value that you can specify is from 1 to 65535.
Dell(conf-dynamic-auth#)port 2000
Configuring shared key
You can configure a global shared key for the dynamic authorization clients (DACs).
1. Enter the following command to enter dynamic authorization mode:
radius dynamic-auth
2. Enter the following command to configure the global shared key value:
client-key encryption-type key
Dell(conf-dynamic-auth#)client-key 7 password
Disconnecting administrative users logged in through RADIUS
Dell EMC Networking OS enables you to configure disconnect messages (DMs) to disconnect RADIUS administrative users who
are logged in through an AAA interface.
Before disconnecting an administrative user using the disconnect messages, ensure that the following prerequisites are
satisfied:
● Shared key is configured in NAS for DAC.
● NAS server listens on the Management IP UDP port 3799 (default) or the port configured through CLI.
● AAA session for the user is active.
NAS uses the user-name or both the user-name as well as the NAS-Port attribute to identify the AAA user session. NAS
disconnects all sessions related to the user, if the user-name is provided without NAS-port.
1. Enter the following command to configure the dynamic authorization feature:
radius dynamic-auth
2. Enter the following command to terminate the 802.1x user session:
disconnect-user
NAS disconnects the administrative users who are connected through an AAA interface.
Dell(conf#)radius dynamic-auth
Dell(conf-dynamic-auth#)disconnect-user
NAS takes the following actions:
● validates the DM request and the session identification attributes.
● sends a DM-Nak with an error-cause of 402 (missing attribute), if the DM request does not contain the User-Name.
● sends a DM-Ack, if it is able to successfully disconnect the admin user.
● sends a DM-Nak with an error-cause value of 506 (resource unavailable), if it is not able to disconnect the admin user.
● sends a DM-Nak with an error-cause value of 501 (administratively prohibited), if disconnect-user feature is not enabled in
NAS.
Configuring CoA to bounce 802.1x enabled ports
Dell EMC Networking OS provides RADIUS extension commands that enables you to configure port bounce settings for the
802.1x enabled port.
Before configuring port bounce settings on a 802.1x enabled port, ensure that the following prerequisites are satisfied:
Security
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