Cisco Catalyst 4500 Series, Software Configuration Manual

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 3 Configuring the Switch for the First Time
Controlling Access to Privileged EXEC Commands
•
Configuring Authorization for Privileged EXEC Access and Network Services,
page 3-21
• Starting Accounting, page 3-21
Default Configuration
and AAA are disabled by default.
To prevent a lapse in security, you cannot configure through a network management
application. When enabled, can authenticate users accessing the switch through the CLI.
Note
Although configuration is performed through the CLI, the server authenticates
HTTP connections that have been configured with a privilege level of 15.
Identifying the Server Host and Setting the Authentication Key
You can configure the switch to use a single server or AAA server groups in order to group existing
server hosts for authentication. You can group servers to select a subset of the configured server hosts
and use them for a particular service. The server group is used with a global server-host list and contains
the list of IP addresses of the selected server hosts.
To identify the IP host or host maintaining server and optionally set the encryption key,
perform this task, beginning in privileged EXEC mode:
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
tacacs-server host hostname
[
port
integer
] [
timeout integer
] [
key
string
]
Identifies the IP host or hosts maintaining a server. Enter this
command multiple times to create a list of preferred hosts. The software
searches for hosts in the order in which you specify them.
• For hostname , specify the name or IP address of the host.
•
(Optional) For port integer , specify a server port number. The default
is port 49. The range is 1 to 65535.
•
(Optional) For timeout integer , specify a time in seconds the switch
waits for a response from the daemon before it times out and declares
an error. The default is 5 seconds. The range is 1 to 1000 seconds.
•
(Optional) For key string , specify the encryption key for encrypting
and decrypting all traffic between the switch and the
daemon. You must configure the same key on the daemon
for encryption to succeed.
Step 3
aaa new-model
Enables AAA.
Step 4
aaa group server
group-name (Optional) Defines the AAA server-group with a group name.
This command puts the switch in a server group subconfiguration mode.
Step 5
server ip-address
(Optional) Associates a particular server with the defined
server group. Repeat this step for each server in the AAA
server group.
Each server in the group must be previously defined in Step 2.
Step 6
end
Returns to privileged EXEC mode.