The Huawei HG851 is a compact GPON ONT designed for fiber-to-the-home deployments, delivering reliable high-speed broadband and seamless multimedia services. It provides multiple Ethernet interfaces, integrated Wi‑Fi for wireless connectivity, and optional VoIP support for telephony. With user-friendly web management, robust security features, and Quality of Service controls, the HG851 simplifies subscriber provisioning and network maintenance. Its energy-efficient design and stable performance make it suitable for residential and small business broadband access solutions, widely deployable.

The HG851 is a router manufactured by the company Huawei that allows multiple devices to connect to a network and communicate with each other. It works by receiving data packets from devices and forwarding them to their intended destination. The router is assigned a unique IP address , which serves as its identifier on the network.

To access the router's settings and configure its functions, users can log in using a web browser and their and . Once logged in, users can customize various settings such as network name, password, and security protocols. They can also set up parental controls, prioritize bandwidth usage, and monitor network activity.