How to connect to a Raspberry Pi via Ethernet to a modem
How to Build Your Own Raspberry Pi Bonding Router - Speedify
Raspberry Pi as a router using a single network interface
This 6-inch board turns a Raspberry Pi module into a DIY router | Ars Technica
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
Raspberry Pi 4 as a Network Router - YouTube
Amazon.com: GeeekPi Router Board for Raspberry Pi CM4, Pi Compute Module 4 Expansion Board Breakout Board Module for Raspberry Pi Compute Module 4 Series : Electronics
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
How to use Raspberry Pi as a router
Overview | Setting up a Raspberry Pi as a WiFi Access Point | Adafruit Learning System
Raspberry Pi CM4 IoT Router Carrier Board Mini with Case and PiTray mini - DFRobot
RouterPi - A Compute Module 4 Router | Zak's Electronics Blog