How to open a port for Minecraft?

Question

Windows

Hello, friends. There is a need to open a port. The network diagram is something like this: the
Internet is directly (without a router, modem) connected to a PC with win 8 pro, transmission, wifi access point and home group, to which a windows 7 PC is connected via wifi. Both the first and second PCs have eset smart security 8 in interactive mode (firewall), the firewall is turned off. Task: open a port (25565) for playing Minecraft from a PC on the seven, that is, so that this port is accessible from the outside, in other words, anyone can get to my server by entering external_ip: 25565 in the game. I ask for your help. Thanks in advance!

Answer 1

To open a port, you need to start the server that listens on this port. The second task will be to provide traffic routing between the client and the server. If we are talking about the fact that on a computer with windows 7 there should be a server listening for incoming connections from the Internet - NAT should be smoked, see the link in the answer above.

Answer 2

You have a gray IP address, you cannot be accessed from the Internet.
Port forwarding won't help.
Ask your provider to give you a white address.
Or rent a server with a white address and create a VPN tunnel.

Answer 3

First, turn on the firewall! open the port in it, also install the program that listens to this port!

Answer 4

It is necessary to check whether this port is open on all computers along the way, otherwise it was open on my computer, but it turned out that it was not on the router