OpenWrt powered router with TM Unifi

The OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned. 

I am using TM Unifi for my home daily internet access and I want to replace the bundle WiFi router with a OpenWrt powered device. I will be using a D-Link DIR-842 C2 which you can get it below RM50 used. 

1. Once I have flash OpenWrt firmware to the devices, connect the CAT5e/6 cable from your GPON ONT device to the WAN port on the DIR-842 router.

 

2. Under Network->Switch, create a VLAN 500 and tagged to both CPU and WAN port for TM Unifi PPPoE connection.

3. Under Network->Interface, configure the WAN interface with PPPoE protocol and the VLAN 500 virtual interface.

 

4. Assign the WAN interface as WAN firewall zone too.