How to check the ip addresses and port numbers of all connected computers?

The computer itself will not record such data, but it will be in the log file of the firewall!

For example, the log of Skynet firewall:

[18: 06: 34]192.168.1.73 attempted to connect to the NetBios-SSN[ 139] port of this computer.

TCP flag:

The operation was rejected.

[18: 06: 37]192.168.1.73 attempted to connect to the NetBios-SSN[ 139] port of this computer.

TCP flag:

The operation was rejected.

Try to connect to port 3583 of this machine.

TCP flag:

The operation was rejected.

[18: 48: 32] 220.160.37.21Try to connect to port 3834 of this machine.

TCP flag:

The operation was rejected.

[18: 48: 33] 218.25.68.146 Try to connect to port 3873 of this machine.

TCP flag:

The operation was rejected.

Try to connect to port 3983 of this machine.

TCP flag:

The operation was rejected.

Try to connect to port 4004 of this machine.

TCP flag:

The operation was rejected.