ghazranka

Alright so I'm boned in the port forwarding department. I've done some tinkering and figured out that I can use IPv6 to do what I need but I've hit a snag. When I connect my desktop directly to my lb1120 router IPv6 works perfectly and I can ping it from an outside connection. However, when I set up my network like this: lb1120 -> netgear r6400 -> desktop IPv6 no longer works. I've set up my R6400 IPv6 using automatic configuration but no dice.

I'm currently using a t-mobile sim card in an netgear lb1120 router. My understanding is that t-mobile designates private ipv4 addresses which makes traditional ways of port forwarding through the router useless. How would I go about port forwarding in this situation?

I'm sporting a logitech G910 keyboard, a razor ouroboros mouse and a pair of sony bass earbuds.