The device is administered through a Web browser, and the interface of the NSA 220 is similar to other UTM products that Dell offers through its SonicWALL brand.
The NSA 220 Wireless-N is a small device with three antennas that can act as a wireless access point, along with a firewall, intrusion prevention and VPN. Let’s see how to set up a virtual private network (VPN) using the SonicWALL NSA 220 Network Security Appliance other products in this line are very similar. SonicWALL’s products are among the more popular unified threat management (UTM) devices available for small businesses.