On a home private network, the router would have a private IP address something like this 192.168.0.1. On the home network there are 5 computers. Each has a local IP address 192.168.0.xx e.g. 192.168.0.2 – 192.168.0.6. But the computers themselves do not have a public IP, only the router does. So would it be possible for someone from an outside network to send a file to one specific computer in my home network? Like if they know the MAC address of the device.
And how is it that emails can reach e.g. outlook application installed on one computer with one IP address, but still be accessed from another computer with a completely different IP address.
In: 5
Your router uses NAT to “share” it’s external IP among all the internal computers.
It’s possible to do reverse NAT, from the internet to your internal computers, but it’s risky and demand knowledge about TCP/IP ports and firewall.
Latest Answers