How to make a white IP for a 4g modem on a virtual server with Mikrotik Cloud Hosted Router?

Question

Mikrotik

So there is a server on VPS for a penny bought 44r per month) (white IP 100 Mbps channel). It has a cloud version of RouterOS (CHR).
There is a home Mikrotik to it 4g router (gray IP), on a 4g DMZ router to Mikrotik.
At home there is a NAS and other equipment that requires direct access by IP address.
Task: knock on port X on the server address in the cloud and get into the network at home on the NAS.
VPN site to site and forwarding did not help.

Answer 1

Well, actually figure out how much you didn’t succeed with vpn, there aren’t many other options.

Answer 2

What did they do that didn't work?

spoiler

I have the same configuration and it works

Answer 3

Check firewall.
Make masquarade rule on vpn home interface and server... should work

Answer 4

VPN+OSPF

Answer 5

Haven't decided yet. Maybe so
CHR router
ip 91.203.XX.115
VPN 172.16.10.1 client (home router) 172.16.10.10
at home router
ip gray
network 192.168.50.0
NAS 192.168.50.111
I also found in nas that he, as a vpn client himself, can cling to his ip when connected to CHR 172.16.10.11
masquerade on both sides did not help