TACACS+ protocol
TACACS+ (Terminal Access Controller Access Control System) terminal access controller access control system. It is similar to our Radius protocol of IDsentrie. But TACACS+ uses the TCP protocol and Radius uses UDP. Their important role is 3A. The so-called 3A means Authentication authentication, Authorization authorization and Accounting billing.
TACACS+ protocol message type
There are seven types of messages in TACACS+:
Certification:
1 、 Authentication_START
2 、 Authentication_CONTIUNE
3 、 Authentication_REPLY
Authorization:
4 、 Authorization_REQUEST
5 、 Authorization_RESPONSE
Billing:
6 、 Accounting_REQUEST
7 、 Accounting_REPLY
