HP ProCurve 9304M Security Manual page 41

Securing Access to Management Functions
2. Set optional parameters. See "Setting Optional TACACS/TACACS+ Parameters" on page 2-26.
3. Configure authentication-method lists. See "Configuring Authentication-Method Lists for TACACS/TACACS+"
on page 2-27.
4. Optionally configure TACACS+ authorization. See "Configuring TACACS+ Authorization" on page 2-29.
5. Optionally configure TACACS+ accounting. See "Configuring TACACS+ Accounting" on page 2-32.
Identifying the TACACS/TACACS+ Servers
To use TACACS/TACACS+ servers to authenticate access to an HP device, you must identify the servers to the
HP device.
For example, to identify three TACACS/TACACS+ servers, enter commands such as the following:
ProCurveRS(config)# tacacs-server host 207.94.6.161
ProCurveRS(config)# tacacs-server host 207.94.6.191
ProCurveRS(config)# tacacs-server host 207.94.6.122
Syntax: tacacs-server <ip-addr>|<hostname> [auth-port <number>]
The <ip-addr>|<hostname> parameter specifies the IP address or host name of the server. You can enter up to
eight tacacs-server host commands to specify up to eight different servers.
NOTE: To specify the server's host name instead of its IP address, you must first identify a DNS server using the
ip dns server-address <ip-addr> command at the global CONFIG level.
If you add multiple TACACS/TACACS+ authentication servers to the HP device, the device tries to reach them in
the order you add them. For example, if you add three servers in the following order, the software tries the servers
in the same order:
1. 207.94.6.161
2. 207.94.6.191
3. 207.94.6.122
You can remove a TACACS/TACACS+ server by entering no followed by the tacacs-server command. For
example, to remove 207.94.6.161, enter the following command:
ProCurveRS(config)# no tacacs-server host 207.94.6.161
NOTE: If you erase a tacacs-server command (by entering "no" followed by the command), make sure you also
erase the aaa commands that specify TACACS/TACACS+ as an authentication method. (See "Configuring
Authentication-Method Lists for TACACS/TACACS+" on page 2-27.) Otherwise, when you exit from the CONFIG
mode or from a Telnet session, the system continues to believe it is TACACS/TACACS+ enabled and you will not
be able to access the system.
The auth-port parameter specifies the UDP (for TACACS) or TCP (for TACACS+) port number of the
authentication port on the server. The default port number is 49.
Specifying Different Servers for Individual AAA Functions
In a TACACS+ configuration, you can designate a server to handle a specific AAA task. For example, you can
designate one TACACS+ server to handle authorization and another TACACS+ server to handle accounting. You
can set the TACACS+ key for each server.
June 2005 2 - 25