Closing thoughts...

After you put together a system in this manner, you will really understand the security that the system does and does not provide you and your internal LAN.
Security is no longer an illusion for you. It's real. You know where its boundaries are, and as a result, you will be ahead of and more secure than the guy who just went out and bought his firewall off the shelf.

After you put together a system in this manner, you will really understand the security that the system does and does not provide you and your internal LAN.