OPNsense is a firewall application based on freeBDS. OPNsense is a light-weight application, which contains a sleek graphical interface. Control over state table, traffic shaping, Network address translation (NAT), VLAN support and VPN are some of the special features of this software. Its deployments include wireless access points, routers, VPN endpoints, DHCP and DNS servers, and UTM-machines. It contains most of the features available in expensive commercial firewalls with the benefits of open source.