Hi, My latest tech report is now up. I think it would be a nice idea if we could kick off a discussion about Tor, NAT devices and reachability. Tor and NAT devices: increasing bridge & relay reachability or, enabling the use of NAT-PMP and UPnP by default: https://research.torproject.org/techreports/tor-nat-plan-2012-08-22.pdf Feedback welcome and encouraged! All the best, Jake