Just wondering the theory or reason behind having the inside interface of a firewall on a different network than your primary network. I put together a quick drawing of what i'm talking about.
What is the advantage of having the inside interface of the firewall on a different subnet, than just being on a main subnet? In the diagram I have the inside interface as 172.16.1.2, which I see a lot in example diagrams. But what is the benefit of it just being another