I'm working on a solution to allow remote Linux nodes that are behind firewalls to be accessible for SSH and web server.
Can anyone suggest an IPv6 tunnel scheme that would work with NAT firewalls? And what software would be needed on the remote nodes and the central server? Also I do not believe the ISP at either side does native IPv6. I should also point out that the remote Linux nodes will be on cell modems (we can choose the modem).
A solution where we could have static IPv6 addresses on the remote Linux nodes would be ideal.