Definition: "CSUSBnet" is a technical term that describes a network connection between two or more computers, where each computer uses its own subnet mask to connect to the internet. A CSUSBnet is typically used in a multi-tenant environment with multiple virtual private networks (VPNs). The subnet mask determines which devices on one end of the connection will be able to access the internet and what services can be accessed by other endpoints. It's also known as "cable modem" or "router switch."