According to the present subject matter, a cast request is received at a rendering system from a user device over a home network. The cast request is request for casting data from a cast device communicatively coupled to a first network and a third network, onto a display device communicatively coupled to the home network. Thereafter, the rendering system transmits the cast request to a casting system over a second network. In response transmitting the rendering system receives, from the casting system to the requested data. The data is provided to the casting system by the cast device and the data is obtained by the cast device over the first network. The available cast system is automatically discovered by the user device and no configuration or specific software is needed on the user device.