Stateless firewall
Course: AP® Cybersecurity Shows up in: Unit 3: Securing Networks
A firewall that filters each packet using header information such as internet protocol (IP) addresses, ports and protocols.
Appears in the course and exam description (CED): 3.4.A.2
Why it matters in Unit 3
Fast and simple, but it judges each packet alone.
Example
Block every packet to port 23.
Learn it properly, with a checkpoint 3.4 Protecting Networks: Firewalls