Old method (for example) IOS version 12.x
- aaa new-model
- radius-server host x.x.x.x key password
- tacacs-server host x.x.x.x key password
- aaa authentication login default group radius|tacacs+ local
- username x password y
To apply configuration to the VTY lines:
- line vty 0 15
login authentication default - line console 0
login authentication <group name>
Authorisation – what you can actually do after authentication.
Accounting – tracking the user actions
