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Authentication Commands
4-69
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• 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 is attempted on the TACACS+ server. If the TACACS+ server
is not available, the local user name and password is checked.
Example
Related Commands
enable password - sets the password for changing command modes (4-27)
RADIUS Client
Remote Authentication Dial-in User Service (RADIUS) is a logon authentication
protocol that uses software running on a central server to control access to
RADIUS-aware devices on the network. An authentication server contains a
database of multiple user name/password pairs with associated privilege levels for
each user or group that require management access to a switch.
radius-server host
This command specifies primary and backup RADIUS servers and authentication
parameters that apply to each server. Use the no form to restore the default values.
Syntax
[no] radius-server index host {host_ip_address | host_alias}
[auth-port auth_port] [timeout timeout] [retransmit retransmit] [key key]
• index - Allows you to specify up to five servers. These servers are queried
in sequence until a server responds or the retransmit period expires.
• host_ip_address - IP address of server.
• host_alias - Symbolic name of server. (Maximum length: 20 characters)
• port_number - RADIUS server UDP port used for authentication messages.
(Range: 1-65535)
Console(config)#authentication enable radius
Console(config)#
Table 4-28. RADIUS Client Commands
Command Function Mode Page
radius-server host Specifies the RADIUS server GC 4-70
radius-server port Sets the RADIUS server network port GC 4-70
radius-server key Sets the RADIUS encryption key GC 4-71
radius-server retransmit Sets the number of retries GC 4-71
radius-server timeout Sets the interval between sending authentication requests GC 4-72
show radius-server Shows the current RADIUS settings PE 4-72