p910nd allow multiple printers through a socket connection to port 910n (where n=1, 2, 3 …). So, we can share more than one printer to OpenWrt. In default, port number when you unplug and plug in different printers. The following configuration uses the Hotplug script to pair printers to designed ports. This allows multiple printers to be recognized, assigned ports based on the product ID, same ports assigned will resume when printers are connected/turned on. Works on both usb printer and parallel printer using serial to USB adapter.