Compare TACACS + and RADIUS - Cisco
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Compare TACACS+ and RADIUS
These sections compare several features of TACACS+ and RADIUS.
UDP and TCP
RADIUS uses UDP while TACACS+ uses TCP.
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Packet Encryption
RADIUS encrypts only the password in the access-request packet, from the client to the server...TACACS+ encrypts the entire body of the packet but leaves a standard TACACS+ header.
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Authentication and Authorization
RADIUS combines authentication and authorization...TACACS+ uses the AAA architecture, which separates AAA. This allows separate authentication solutions that can still use TACACS+ for authorization and accounting.
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Answer is correct.
RADIUS uses UDP while TACACS+ uses TCP.
RADIUS encrypts only the password in the access-request packet, from the client to the server. The remainder of the packet is unencrypted. Other information, such as username, authorized services, and accounting, can be captured by a third party.
TACACS+ encrypts the entire body of the packet but leaves a standard TACACS+ header.
RADIUS combines authentication and authorization.
TACACS+ uses the AAA architecture, which separates AAA.
TACACS+ (the T is for TCP) lots over overhead, Thoroughly Covers Packet
radiUses UDP <-- no mnemonics for this one yet. Somebody come up with one, preferably using P to represent Password.
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