Hi, I have a static server connected to 100MBit bidirectional bandwidth which is already IPv6-connected via sixxs. If I'd add a subnet to it I could use it as a remote tunnel endpoint for my DSL-dialups, thus no longer needing three (or even more) tunnels to the same POP (single point of failure). I guess it's a good idea not to rely on a single connection when handling mail via smtp6. I think it's nice to have my different locations on the same subnet (prefix). I'm looking for a way to let my heartbeats connect to my server without reinventing the whole heartbeat-protocol. Perhaps I'm looking for the server-side-version of heartbeat (aiccu) or another solution to identify, authenticate and authorize two dynamic tunnels. I might trigger a ssh-script which reconfigures the tunnel-interfaces on the server (Linux) by ppp-up but I don't like the idea to leave root-keys (or sudo-enabled keys) on my DSL-gateways. I might create a https-request with a password and call a script via apache, but I'm not really willingly to let apache do anything with root-permissions, actually it's going to be put into chroot. Is there a running solution? How do others handle such a situation?