IPXBOX is a lightweight IPX network server that's compatible with the x86 emulator DOSBox. By default, it acts as a forwarding server between DOSBox clients, which allows them to communicate over a network using the classic IPX protocol. This protocol was typically used for early network games like Doom, Duke Nukem 3D, and Quake. IPXBOX can also be bridged to a physical network, which lets emulated DOSBox users play alongside users on actual DOS machines. Additionally, IPXBOX provides advanced features such as TCP/IP over IPX and a PPTP server.