Which official port should be used when configuring external RADIUS authentication on a Cisco
WLC version 7.0?
A.
49
B.
1645
C.
1646
D.
1812
E.
1813
Which official port should be used when configuring external RADIUS authentication on a Cisco WLC version 7.0?
Which official port should be used when configuring external RADIUS authentication on a Cisco
WLC version 7.0?
RADIUS authentication uses UDP port 1812, while accounting uses UDP port 1813. Early implementations of RADIUS used ports 1645 and 1646, but that usage is obsolete.
Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting (AAA or Triple A) management for users who connect and use a network service. RADIUS was developed by Livingston Enterprises, Inc. in 1991 as an access server authentication and accounting protocol and later brought into the Internet Engineering Task Force (IETF) standards.[1]
Because of the broad support and the ubiquitous nature of the RADIUS protocol, it is often used by ISPs and enterprises to manage access to the Internet or internal networks, wireless networks, and integrated e-mail services. These networks may incorporate modems, DSL, access points, VPNs, network ports, web servers, etc.[2]
RADIUS is a client/server protocol that runs in the application layer, using UDP as transport. Network access servers, the gateways that control access to a network, usually contain a RADIUS client component that communicates with the RADIUS server.[3] RADIUS is often the back-end of choice for 802.1X authentication as well.[4]
1812