2Eyl
Does the application gateway firewall function only on the application layer or on all layers of the OSI model?
This is very confusing. I am seeing 2 different things in various books and sites.
A. Application gateway firewall scans layer 1 to layer 7 of the OSI model.
B. Application gateway firewall only scans Application Layer (Or Application, Presentation and Session Layer) data.
I asked many people and they, also, were not too sure about it.
