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I would like to connect remotly over VPN to the device that is connected to MR200 router. MR200 router would connect to the internet throug LTE provider. The MR200 router will be VPN server configured to accept connections from my network.
The problem is: the device on LTE network gets random IP addresses, so how to figure out what address to put on VPN client's side ? Is there a way to identify this VPN connection with some name or ID number ?
Is the static public address a must for VPN server to connect to it?
Is it possible to get such LTE service that provide always the same IP address for specific sim card ?

BR,
Magda