The 3com 3C857 router is a compact, high-performance router designed for small to medium-sized businesses. It supports up to 50 users and offers advanced features such as VPN support, firewall protection, and Quality of Service (QoS) management. The router has four Ethernet ports for connecting local devices and a WAN port for connecting to the internet. It also includes a web-based management interface for easy configuration and monitoring of network settings.

The 3C857 is a router manufactured by the company 3com 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 192.168.1.1, 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 blank and admin. 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.