Double NAT in another country, how to overcome?

Question

Computer networks

Good afternoon, there is equipment in another country behind the provider's double NAT, what are the ways to access this equipment from the outside? in particular to mikrotik and video recorder with cameras? P2P is not suitable. RSTP is required on the registrar.

Answer 1

VPN from inside the network behind NAT

Answer 2

Without the assistance or with the explicit opposition of the Mikrotik 2 operator - no way. With assistance - VPN to Mikrotik 1, moreover, Mikrotik 2 should establish a connection, and Mikrotik 1 - only accept it, because Mikrotik 1 itself will not break through to Mikrotik 2 at all.

Answer 3

STUN server

Answer 4

SSTP+EOIP=forwarding the entire network. If interested, continue the conversation.