NAT connections STUN etc

[Chris Clarke]

Hi all,

Love tinc by the way.  It's a great VPN.

I'm having issues with 2 nodes always talking through an intermediate 
node.  My set up is a VPS in a cloud somewhere that's running tinc and 2 
other nodes - one a roaming laptop (always NAT'd) and the other a server 
behind a dynamic IP home broadband connection (Not NAT'd but 
firewalled).  Neither the laptop nor the home server have any firewall 
rules that accept incoming traffic for tinc.

They can all talk to each other, but it always routes the traffic via 
the VPS which does have incoming traffic allowed.

What method should tinc be using to create a direct link between them 
and what may be preventing it from working?  Is it UDP hole punching via 
the connection they do have with each other through the intermediate 
node?

I'm running the latest stable version 1.0.26

Look forward to your ideas.

Chris