Page tree

Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.

Prior name: Tornevall Networks RaspTunnel.

What is it?

Tornevall Networks RaspTunnel is an experimental project where we're adding micro servers into a DMZ-controlled environment. Main purpose is ipv6 GRE-tunneling with the help from your primary router, which should be configured to route traffic to a DMZ-address, where this micro server, known as Raspberry pi, are the tunnel gateway.


For the moment, to create more stability, we instead build all solutions on OpenVPN which also gives the possibility to aquire local IPv4 addresses if necessary . Or if you like, LAN access.The tunnel project has a primary goal: To configure ipv6 tunnels, where they are normally not reachable (ISP's that for example have no idea of what they are doing), or where the ip range is weakly configured without proper reverse PTR's

What is the goal?

There are a few top providers that support IPv6 connectivity already. For example Spacedump AB and Hurricane Electric. Many providers offers connectivity through SIT/GRE/TUN/TAP drivers. One of the goals is to be a in-between layer of the regular tunnels, as they are required to be (like described above) located un-NAT'ed to work. Besides, we offer a reverse-PTR-DNS editor at, specifically written to make DNS editing easier.

How does it work?

No prior configuration or ip rule settings are required anymore. You only need OpenVPN and permission. Then it is up to you how your local endpoint are configured. Either we give you a simple IPv4/32 or IPv6/128 address, or we give you a /64 IPv6 subnet, as this is the smalles required size of a IPv6 subnet for DHCPv6 to work properly.