C
OMMAND
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I
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4-96
Authentication Sequence
authentication login
This command defines the login authentication method and precedence.
Use the no form to restore the default.
Syntax
authentication login {[local] [radius] [tacacs]}
no authentication login
• local - Use local password.
• radius - Use RADIUS server password.
• tacacs - Use TACACS server password.
Default Setting
Local
Command Mode
Global Configuration
Command Usage
• 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
Port Security Configures secure addresses for a port 4-106
Port Authentication Configures host authentication on specific ports
using 802.1X
4-108
Table 4-28 Authentication Sequence
Command Function Mode Page
authentication login Defines logon authentication method and
precedence
GC 4-96
authentication enable Defines the authentication method and
precedence for command mode change
GC 4-97
Table 4-27 Authentication Commands
Command Group Function Page
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