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Chapter 23: Authentication Commands
Authentication Sequence
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E
XAMPLE
Console(config)#authentication enable radius
Console(config)#
R
ELATED
C
OMMANDS
- sets the password for changing command modes (
)
authentication login
This command defines the login authentication method and precedence.
Use the
no
form to restore the default.
S
YNTAX
authentication login
{[
local
] [
radius
] [
tacacs
]}
no authentication login
local
- Use local password.
radius
- Use RADIUS server password.
tacacs
- Use TACACS server password.
D
EFAULT
S
ETTING
Local
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
•
RADIUS uses UDP while 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 encrypts the entire body
of the packet.
•
RADIUS and 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 server.
If the server is not available, the local user name and
password is checked.
E
XAMPLE
Console(config)#authentication login radius
Console(config)#
Summary of Contents for SSE-G2252
Page 42: ...44 General IP Routing on page 627...
Page 603: ...Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 609...
Page 883: ...Chapter 24 General Security Measures Port based Traffic Segmentation 894...
Page 989: ...Chapter 30 Congestion Control Commands Automatic Traffic Control Commands 1000 Console...
Page 1007: ...Chapter 33 Address Table Commands 1019...
Page 1137: ...Chapter 38 Quality of Service Commands 1150...