Chapter 7
| Authentication Commands
Authentication Sequence
– 168 –
Authentication Sequence
Three authentication methods can be specified to authenticate users logging into
the system for management access. The commands in this section can be used to
define the authentication method and sequence.
authentication enable
This command defines the authentication method and precedence to use when
changing from Exec command mode to Privileged Exec command mode with the
enable
command. Use the
no
form to restore the default.
Syntax
authentication enable
{[
local
] [
radius
] [
tacacs
]}
no authentication enable
local
- Use local password only.
radius
- Use RADIUS server password only.
tacacs
- Use TACACS server password.
Default Setting
Local
Command Mode
Global Configuration
Command Usage
◆
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
enable radius tacacs local
,” the user name and password on the RADIUS
server is verified first. If the RADIUS server is not available, then authentication
Table 34: Authentication Sequence Commands
Command
Function
Mode
authentication enable
Defines the authentication method and precedence for
command mode change
GC
authentication login
Defines logon authentication method and precedence
GC
Summary of Contents for EX-3524
Page 2: ......
Page 28: ...Figures 28 ...
Page 34: ...Section I Getting Started 34 ...
Page 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Page 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Page 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Page 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Page 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Page 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Page 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Page 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Page 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Page 366: ...Chapter 15 Address Table Commands 366 ...
Page 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Page 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Page 578: ...Section I Appendices 578 ...