What are the main features of a next-generation firewall? What is the difference compared with traditional firewall?

Traditional firewalls are packet-filtering firewalls, which are based on the IP, port and other information in the packet. Next-generation firewalls, in addition to traditional packet filtering, can also be filtered based on the characteristics and content of the data in the application layer.

For example, traditional packet filtering can't block QQ (because QQ automatically converts ports), while next-generation firewalls can block based on features.

For a detailed list of features, we recommend you search for "WFilter

NGF", which stands for Next

Generation

Firewall.