How to connect via VPN to a home machine behind NAT?

Question

VPN

(This I think is NAT). Help, please, to have a connection with the house.
I have internet at home via optical fiber from tri-o-rf.ru. I have a machine with Mac OS X at home, to which I want to connect via VPN from anywhere (previously connected with another provider). The current provider gives me an external ip like 193.242.148.xxx. Attempts to connect to it from the outside do not work. At the same time, being at home and using a "private" ip like 10.23.3.xxx, I connect. As far as I understand, the problem is that my supposedly external ip-address is also used by the provider to release other clients to the world, so I cannot connect to my home, it is "hidden" inside the provider's network.
Are there ways to get around these difficulties? As far as I know, the provider does not provide dedicated static ip addresses.

Answer 1

ddns

Answer 2

And who issues a private IP - your router or provider? If yours - try to forward the port, if the provider - there is no external IP.