Setting up a Raspberry Pi with 2 Network Interfaces as a very simple router | Jeff Geerling
Two Tiny Dual-Gigabit Raspberry Pi CM4 Routers | Jeff Geerling
Raspberry Pi as a router using a single network interface
Raspberry Pi Bonded Router Boosts Speed for Rural Networks | Tom's Hardware
How to use Raspberry Pi as a router
RouterPi - A Compute Module 4 Router | Zak's Electronics Blog ~*
Raspberry Pi Router Board for CM4 Module - Seeed Studio | Mouser
Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini - DFRobot
networking - How to make Raspberry Pi to receive an IP from a router and also pass another IP to another device? - Unix & Linux Stack Exchange
How to Build Your Own Raspberry Pi Bonding Router - Speedify
Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini - DFRobot
Use Raspberry Pi 3 As Router : 10 Steps (with Pictures) - Instructables
Baking a Pi Router for my Raspberry Pi Kubernetes Cluster: How I used a Raspberry Pi 3 as a dhcp server and router for my Pi-based Kubernetes Cluster|downey.io
My 4G router - using a Raspberry Pi : r/RASPBERRY_PI_PROJECTS