Is Tacacs Udp or Tcp

TACACS+ uses TCP (while RADIUS operates over UDP). Since TCP is a connection oriented protocol, TACACS+ has to implement transmission control. RADIUS, however, does not have to detect and correct transmission errors like packet loss, timeout etc. since it rides on UDP which is connectionless.

Which port and protocol does TACACS+ use?

TACACS+ uses Transmission Control Protocol (TCP) for its transport. TACACS+ provides security by encrypting all traffic between the NAS and the process.

Is RADIUS a TCP or UDP?

RADIUS is a client/server protocol that runs in the application layer, and can use either TCP or UDP.