In today's video, we break down the different types of ISP handoffs in enterprise environments and explore the hardware used by carriers and OLO (Other Licensed Operators). You'll learn about: 00:00 Intro 01:00 Whiteboard time 07:00 Lab Overview 12:18 CPE Configuration 22:15 Configure Firewall behind CPE 33:37 Remove CPE use just Firewall 39:45 Outro Types of ISP Handoffs • Ethernet • Fibre Carrier & OLO Hardware • NTEs • How different providers deliver their circuits Demarcation Points • Where the provider’s responsibility ends and yours begins Managed vs Unmanaged Services • What’s included in a managed service • Pros and cons of unmanaged (wires-only) delivery Then we dive into a hands-on configuration demo of an unmanaged wires-only service: Option 1: Using our own CPE • Setting up the uplink • Connecting to the provider’s IP allocation • Routing and gateway configuration Option 2: Direct via the firewall • Terminating the circuit on the firewall • Using our IP allocation to NAT outbound traffic Whether you're planning a new WAN deployment or just want to understand how enterprise internet circuits are delivered and configured, this video has you covered. 🛠️ Stuff I Use 🛠️ EVE-NG - multivendor network emulation software. Linux, Ubuntu, Debian OSX, Windows Networking hardware - Multi vendor 👨🏻‍💻 About Me: Hi I'm Matt a Senior Network Engineer with over two decades of hands-on experience architecting, securing, and optimising high-availability networks across enterprise environments. I stream labs and create video content to help others level up their skills. 💻 Social: Website: [ ]( ) GitHub: [@null0labs]( ) Instagram: [@null0labs]( ) Twitter/X: [@null0labs]( ) LinkedIn:[@mlewisonline]( ) 🙋🏻‍♂️ Questions or ideas? Drop them in the comments. Subscribe for protocol mastery, live labs, and routing realness.