3Com Router Command Reference Guide Addendum for V1.2
Parameter
ip ip-address: IP address of the TACACS+ server to be added.
name host-name: Name of the TACACS+ server to be added, which has been configured by the IP host command. It is a string of 1 to 20 printable characters except for the space.
port port-number: The service port number on the TACACS+ server, which is in the range of 1 to 65535.
response-timeouttime: The response timeout time of TACACS+ server, which is in the range of 1 to 1000 seconds and defaults to 5 seconds.
shared-keykey-string: The encrypted key for the AAA negotiation between the Router and the TACACS+ server. It is a string of printable characters (except for the space) of 1 to 64 characters in length. By default, the key configured using the shared-keycommand is used.
authen-primary: Specify the server configured currently as the primary authentication server.
author-primary: Specify the server configured currently as the primary authorization server.
account-primary: Specify the server configured currently as the primary accounting server.
Description
Using host command, you can add a TACACS+ server into a TACACS+ server group by specifying its IP address as well as specifing it as the primary AAA server. Using undo host command, you can delete a TACACS+ server from a TACACS+ server group by specifying its IP address or you can disable it as the AAA primary server.
By default, no TACACS+ server is configured.
A server group allows of a maximum of five TACACS+ servers.
You can use the parameters authen-primary,author-primary, or account-primary to specify the current configured TACACS+ server as the specified primary authentication, authorization, or accounting server. If none of the servers in a sever group has been specified as the primary server, the first one will be the primary server.
If a primary server has been specified, and if the current AAA server is a standby server, the switch interval specified by the timer quiet command in hwtacacs view will be used to perform the standby/primary switchover operation. Otherwise, no switch will be performed.