The modem/router does have port mapping/triggering available, but I don't think we have a public facing IPv4 address... IPv4 addresses have dried up, haven't been available for a long time now. We do however have public facing IPv6 addresses.
I am aware of the lack of IPv4 addresses. I will look into IPv6 addresses to see if I can use them. I need a public IP address to reach control control elements internal to my LAN.
I'm assuming Gen5 uses an H2000 modem/router? Does this router have an IPv6 to IPv4 transition method - which would allow a IPv4 LAN to communicate from the internet using IPv6? Can the Gen5 modem/router have a fixed IPv6 address? Can an external IPv4 device use a specialized IPv6 address containing the LAN IPv4 address or port to access internal to the LAN?