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.
TR069 client is not available by default in OpenWRT images. Most users use EasyCwmp to have CWMP management capabilities. It's possible to build easycwmp package and install in your OpenWRT system or compile the entire system with EasyCwmp enabled.
Build Package
Download the OpenWRT SDK. It's available in the same page as OpenWRT images. After that, download MicroXML and EasyCwmp and put them under the packages folder from the SDK:
Change the option url and point it to the Oktopus controller. Restart the EasyCwmp daemon and check if the device appears at the Oktopus Controller Devices tab: