How to remotely control a Windows XP computer behind NAT?

Question

Remote access

You need to remotely manage a Windows XP computer behind NAT.
The control computer is also Windows XP and is also behind NAT.
I googled a couple of articles on the topic:
habrahabr.ru/post/147333
habrahabr.ru/post/147347
But this is not quite right: I would like to do without IPv6
. What other options are there? I thought to arrange a reverse connect from both computers to a computer with dedicated IPv4. But so far it doesn’t fit in my head how to set it up so that it organizes a connection for them.
Team viewer is not suitable for the following reasons:
1. not safe
2. it seems that it will not work automatically after rebooting the computer and you need to start it again, having physical access to the computer

Answer 1

1) for sprechen the english
2) loaded as a service, it will work
For non-sprechen in short: there are 2 types of solutions - direct connection of machines (ala vpn) with port forwarding, a known IP and other restrictions, or third-party services that you trust less, because "alien", and "ahh, and if they break us Khan", however, even if they break, it is unlikely that you will be on the priority list for attacking the service)

Answer 2

Team viewer works as a service without problems. I manage 4 PCs without white sp.
Just log in and add new PCs to your list..

Answer 3

And what is between the computers?
It's just that I just forwarded port 3389 to my work computer and remotely connect from my home computer to my work computer via RDP.

Answer 4

DNAT or TeamViewer.
1. not safe - not true.
2. It seems that it will not work automatically after rebooting the computer and you need to start it again, having physical access to the computer - not true.

Answer 5

I use LiteManager for remote administration, it works both over IPv4 and IPv6