Regarding the computer network, I would like to ask everyone about

About the computer network. I would like to ask everyone



This situation may occur:

1, LAN

2, routing AP isolation function is off (if you need to be visible between the LAN devices, you need to share the printer, share files; must be closed)

3, other computers use the Ping command to detect your current computer IP (may be user-friendly operation of the computer, or some automatic LAN management software can automatically scan, does not rule out the possibility of Trojans to explore the network path before propagation)







You can open the ARP interception function in the router
, this is generally caused by insufficient LAN defense capability of the LAN or the operator's computer room, and can be repaired, but I hope it is rather embarrassing.