I did log into it. And I set up port forwarding for port 22. But the only way I can get IPv6 working is Teredo. I can't use a pure IPSEC based VPN. There are a whole host of things that won't work unless there is a computer I have complete control of (not just being able to set up random port forwards) that has a real IP address.
Basically, it's like being behind a PBX because computers trying to make any kind of incoming connection are only able to on a magic set of ports, and they can't choose which computer inside my network to talk to. I want all the computers in my network to be fully addressable by the entire public Internet. When that can't happen, I'm not on a real network, but on a pretend network created by a stupid hack (aka NAT) that should never have seen the light of day.