| Feature | Product | Release introduced | 
|---|---|---|
| TACACS+ | VSP 4450 Series | VSP 4000 4.0 | 
| VSP 4900 Series | VOSS 8.1 | |
| VSP 7200 Series | VOSS 4.2.1 | |
| VSP 7400 Series | VOSS 8.0 | |
| VSP 8200 Series | VOSS 4.1 | |
| VSP 8400 Series | VOSS 4.2 | |
| VSP 8600 Series | VSP 8600 4.5 | |
| XA1400 Series | VOSS 8.0.50 | |
| TACACS+ secure communication using IPSec for IPv4 Note: 
                                     VOSS Releases 6.0 and 6.0.1 do not support this feature. | VSP 4450 Series | VOSS 5.1.2 | 
| VSP 4900 Series | VOSS 8.1 | |
| VSP 7200 Series | VOSS 5.1.2 | |
| VSP 7400 Series | VOSS 8.0 | |
| VSP 8200 Series | VOSS 5.1.2 | |
| VSP 8400 Series | VOSS 5.1.2 | |
| VSP 8600 Series | VSP 8600 8.0 demonstration feature | |
| XA1400 Series | VOSS 8.0.50 | 

Note
DEMO FEATURE - Secure AAA server communication, which includes TACACS+ secure communication for IPv4, is a demonstration feature on some products. Demonstration features are provided for testing purposes. Demonstration features are for lab use only and are not for use in a production environment. For more information on feature support, see VOSS Feature Support Matrix.