Symantec Network Access Control comes with a suite of Symantec Endpoint Protection. You can think of any secured method of access control, and SNAC provides it in a better way. Basically, it provides 802.1x enforced access control, DHCP enforced access control, and gateway enforced access control. If you have a multi-layered VLAN structure on your network, then SNAC is the best choice because any of these three types of access control can be enforced with SNAC. In a domain based environment, you can also enforce various desktop policies through it. It has its own firewall architecture which can help you control the access methods of your network in a better way. SNAC also provides MAC based authentication features.