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Configuring RADIUS-Initiated Change of Authorization

To configure the RADIUS dynamic-request change of authorization feature, perform the following steps to set up the RADIUS dynamic-request server that will perform the CoA operation:

  1. Configure the RADIUS dynamic-request server, and enter RADIUS Configuration mode.
  2. host1(config)#radius dynamic-request server 10.10.5.10
    
    
    
  3. Enable the CoA capability on the RADIUS dynamic-request server.
  4. host1(config-radius)#authorization change 
    
    
    
  5. Define the key (secret) used in the RADIUS Authenticator field during exchanges between the RADIUS dynamic-request server and the RADIUS server.
  6. host1(config-radius)#key Secret21Clientkey 
    
    
    
  7. (Optional) Specify the UDP port on which the router listens for messages from the RADIUS server. The default is 1700.
  8. host1(config-radius)#udp-port 1770
    

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