300-715 · Question #45
Which two ports do network devices typically use for CoA? (Choose two )
The correct answer is D. 3799 E. 1700. Change of Authorization (CoA) allows a RADIUS server like Cisco ISE to dynamically change the session attributes of an already-authenticated endpoint. RFC 5176 defines the standard CoA port as UDP 3799. Cisco also historically used UDP 1700 for CoA in its implementations (e.g…
Question
Which two ports do network devices typically use for CoA? (Choose two )
Options
- A443
- B19005
- C8080
- D3799
- E1700
How the community answered
(27 responses)- A4% (1)
- B4% (1)
- D93% (25)
Explanation
Change of Authorization (CoA) allows a RADIUS server like Cisco ISE to dynamically change the session attributes of an already-authenticated endpoint. RFC 5176 defines the standard CoA port as UDP 3799. Cisco also historically used UDP 1700 for CoA in its implementations (e.g., with older Cisco WLCs and switches). Ports 443, 8080, and 19005 are not standard CoA ports.
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