Soho Surf and ip passthrough

I have a Pepwave Soho Surf. I am using a Pantech UML295 . I need to be able to do IP passthrough in the UML295. I don’t believe this usb modem will do this. There appears to be a way to do this when the UML295 is installed in a PC, but I don’t believe this is possible when attached to a router. So are there any Verizon usb dongle modems that can do either port forwarding or ip passthrough?