This section will help us determine our interface requirements by analyzing our network design. We will make use of our network diagram to understand how many interfaces our network will require.
Let's begin by analyzing our network design:
We can see that our environment consists of four separate interfaces:
- Wide Area Network (WAN): Directly connects to our cable modem, which in turn provides access to the internet.
- Local Area Network (LAN): Our primary internal network.
- Demilitarized Zone (DMZ): Our internal network, on which we allow external access. Our web servers belong to this interface.
- Wireless guest network (GUEST WIFI): We've created this network for the convenience of guests. They can all connect with an easy-to-remember password (or perhaps no password at all) and surf the web. We consider this interface insecure...
