A next generation firewall (NGFW) takes a regular firewall and makes it even better thanks to the additional multilayered security features. A traditional firewall will monitor incoming and outgoing network traffic, whereas a next generation firewall will do so while also providing more security elements like application awareness and control, deep packet inspection (DPI), cloud-delivered threat intelligence, sandbox integration and more. If you want a firewall with all the security bells and whistles, NGFW would be the route you want to go.