SMC Networks TIGERSWITCH SMC6752AL2 ユーザーズマニュアル

4-95

This command defines the login authentication method and precedence. 
Use the no form to restore the default.

authentication login {[local] [radius] [tacacs]}
no authentication login

• local - Use local password. 
• radius - Use RADIUS server password. 
• tacacs - Use TACACS server password.

Local

Global Configuration

• RADIUS uses UDP while TACACS+ uses TCP. UDP only offers best 

effort delivery, while TCP offers a connection-oriented transport. 
Also, note that RADIUS encrypts only the password in the 
access-request packet from the client to the server, while TACACS+ 
encrypts the entire body of the packet.

• RADIUS and TACACS+ logon authentication assigns a specific 

privilege level for each user name and password pair. The user name, 
password, and privilege level must be configured on the authentication 
server.

• You can specify three authentication methods in a single command to 

indicate the authentication sequence. For example, if you enter 
“authentication login radius tacacs local,” the user name and 
password on the RADIUS server is verified first. If the RADIUS 
server is not available, then authentication is attempted on the 
TACACS+ server. If the TACACS+ server is not available, the local 
user name and password is checked.