ZyXEL Communications ENTERPRISE NETWORK CENTER Manual page 230

Chapter 8 Application
feature from the OTV or Device View or Group View panel and click Application > Port
Management > Authentication > TACACS+ Authentication.
Figure 177 Port Management > Authentication > TACACS+ Authentication
The following table describes the labels in this screen.
Table 109 Port Management > Authentication > TACACS+ Authentication
LABEL
Mode
Timeout
IP Address
TCP Port
Shared Secret
Apply
Reset
232
DESCRIPTION
This field is only valid if you configure multiple TACACS+ servers.
Select index-priority and the device tries to authenticate with the first configured
TACACS+ server, if the TACACS+ server does not respond then the device tries to
authenticate with the second TACACS+ server.
Select round-robin to alternate between the TACACS+ servers that it sends
authentication requests to.
Specify the amount of time in seconds that the device waits for an authentication
request response from the TACACS+ server.
If you are using index-priority for your authentication and you are using two
TACACS+ servers then the timeout value is divided between the two TACACS+
servers. For example, if you set the timeout value to 30 seconds, then the device
waits for a response from the first TACACS+ server for 15 seconds and then tries
the second TACACS+ server.
The first column displays a read-only number representing a TACACS+ server
entry.
Enter the IP address of an external TACACS+ server in dotted decimal notation.
The default port of a TACACS+ server for authentication is 49. You need not
change this value unless your network administrator instructs you to do so.
Specify a password (up to 32 alphanumeric characters) as the key to be shared
between the external TACACS+ server and the device. This key is not sent over the
network. This key must be the same on the external TACACS+ server and the
device.
Click Apply to save your changes.
Click Reset to discard your changes and reset the fields to their settings last time
saved.
ENC User's Guide