ISP Modem+Router -> Switch -> Switch -> OpenWrt Router - Network and Wireless Configuration - OpenWrt Forum
Example for Configuring a Layer 2 Switch to Work with a Router for Internet Access - Sx300 Series Switches Typical Configuration Examples - Huawei
![Hosts configuration For the switch that is between networks and router... | Download Scientific Diagram Hosts configuration For the switch that is between networks and router... | Download Scientific Diagram](https://www.researchgate.net/publication/336604947/figure/fig2/AS:814926750818305@1571305086849/Hosts-configuration-For-the-switch-that-is-between-networks-and-router-will-follow-those.jpg)