After installation, you will receive an IP address. Next, you need to create a network (remember the name and password), or join another player's network.
Now that both players are members of the same network, you can create a server (new - network - TCP IP - server), the second player does the same, but chooses "join". If after creating the server, the second player cannot see you, you need to do the following:
Go to "Network connections". In the main menu, go to the "Advanced" submenu, and look for the "Advanced settings" item. In the list of network adapters, move Hamachi to the very top.
Step 1: Go to the Network and Sharing Center.
Step 2: In the Tasks column, click "Manage network connections".
Step 3: Click on the "Advanced" menu item.
Step 4: An drop-down menu will appear, click "Advanced settings".
Step 5: In the window that appears, select Hamachi in the Connections section.
Step 6: If Hamachi is not first in the list, a button with a green up arrow will be available. Click it until it becomes unavailable. This means you have reached your goal.
The firewall on Windows XP is disabled as follows:
1) Start - My Computer - Control Panel (right-click to open the context menu) - Services and Applications - Services. In the list of services that appears, select "Windows Firewall" and then double-click. In the window that appears, click "Stop" and select the startup type "Disabled".
Recently, the Hamachi server has been overloaded - but I want to play :)
There is a quite competitive and also free alternative to Hamachi - pLan + instructions