Technical data

118 ServerIron ADX Administration Guide
53-1002434-01
Configuring TACACS or TACACS+ security
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In the example above, the A-V pair configured for the Exec service is privlvl = 15. The
ServerIron uses the value in this A-V pair to set the user’s privilege level to 0 (super-user), granting
the user full read-write access.
In a configuration that has both a “brocade-privlvl” A-V pair and a non-”brocade-privlvl” A-V pair for
the Exec service, the non-”brocade-privlvl” A-V pair is ignored.
Example
user=bob {
default service = permit
member admin
# Global password
global = cleartext "cat"
service = exec {
brocade-privlvl = 4
privlvl = 15
}
}
In this example, the user would be granted a privilege level of 4 (port-config level). The privlvl
= 15 A-V pair is ignored by the ServerIron.
If the TACACS+ server has no A-V pair configured for the Exec service, the default privilege level of 5
(read-only) is used.
Configuring command authorization
When TACACS+ command authorization is enabled, the ServerIron consults a TACACS+ server to
get authorization for commands entered by the user.
You enable TACACS+ command authorization by specifying a privilege level whose commands
require authorization. For example, to configure the ServerIron to perform authorization for the
commands available at the Super User privilege level (that is, all commands on the device), enter
the following command.
ServerIronADX(config)# aaa authorization commands 0 default tacacs+
Syntax: aaa authorization commands <privilege-level> default tacacs+ | radius | none
The <privilege-level> parameter can be one of the following:
• 0 – Authorization is performed for commands available at the Super User level (all commands)
• 4 – Authorization is performed for commands available at the Port Configuration level
(port-config and read-only commands)
• 5 – Authorization is performed for commands available at the Read Only level (read-only
commands)
NOTE
TACACS+ command authorization can be performed only for commands entered from Telnet or SSH
sessions, or from the console. No authorization is performed for commands entered at the Web
Management Interface or IronView.
TACACS+ command authorization is not performed for the following commands:
• At all levels: exit, logout, end, and quit.
• At the Privileged EXEC level: enable or enable <text>, where <text> is the password configured
for the Super User privilege level.