Configuration of AAA new-model in switch

[Tristan Apostol]

After configuring Taccacs on 2960 switch still the same secret password are working. does anyone know what is the problem  of this. Please see below for my configuration.

tacacs-server timeout 15
tacacs-server directed-request
tacacs-server key ------
tacacs-server host ------
aaa new-model
aaa authentication login default group tacacs+ local
aaa authentication enable default group tacacs+ enable
aaa authorization config-commands
aaa authorization exec default group tacacs+ local if-authenticated
aaa authorization commands 0 default group tacacs+ local if-authenticated
aaa authorization commands 15 default group tacacs+ local if-authenticated

[MHM Cisco World]

what you meaning same password still work ?

MHM

[Tristan Apostol]

The secret password still working, but when i use the same command in another switch the Tacaccs+ is working. 

[MHM Cisco World]

 ip tacacs source-interface < >

use specific interface to connect to tacacs server, same interface with IP you add to server and interface can reach the tacacs 

MHM

[Tristan Apostol]

Still not working. 

This is the current configuration of working Taccacs.

aaa new-model
!
!
aaa authentication login default group tacacs+ local
aaa authentication enable default group tacacs+ enable
aaa authorization config-commands
aaa authorization exec default group tacacs+ local if-authenticated
aaa authorization commands 0 default group tacacs+ local if-authenticated
aaa authorization commands 15 default group tacacs+ local if-authenticated
!

ip default-gateway ------
ip http server
ip http secure-server
logging trap debugging
logging ------
snmp-server community -----
tacacs-server host ----- timeout 5
tacacs-server timeout 15
tacacs-server directed-request
tacacs-server key -------

[MHM Cisco World]

I dont see command ?

MHM