Final answer:
A home gateway provides auto discovery services for smart devices connected to the network.
Step-by-step explanation:
Auto discovery services for smart devices that are connected to the network can be provided by a home gateway. A home gateway is a device that connects all the devices on a home network to the internet, and it often includes features like Wi-Fi and firewall protection. The home gateway can automatically detect and configure smart devices that are connected to the network, making it easier for users to set up and use their devices.