What kind of firewall inspects the content and context of every packet it encounters?

A firewall that analyzes the content and context of individual packets it encounters is known as a stateful inspection firewall. This type of firewall has knowledge of preceding packets from the same IP address, allowing it to understand the communication context. This capability enhances security by making certain attacks, such as a SYN flood, highly challenging to execute. In contrast, packet filtering firewalls examine packets without considering the context. Application-layer firewalls, on the other hand, may employ stateful packet inspection or basic packet filtering, but their main purpose is to address application-specific concerns. An example of an application-layer firewall is a web application firewall. A gateway firewall refers to a firewall positioned at the network gateway, without specifying whether it utilizes packet filtering or stateful packet inspection.