Another project you might find useful, that we at https://www.maidsafe.net https://www.maidsafe.net are actively working on, is https://github.com/maidsafe/crus

Another project you might find useful, that we at https://www.maidsafe.net https://www.maidsafe.net are actively working on, is https://github.com/maidsafe/crust/ https://github.com/maidsafe/crust/. It's a generic peer-to-peer networking library written in Rust. * it connects two peers together * various NAT traversal techniques are implemented: hole punching, UPnP/IGD, etc. * it supports both TCP and UDP. In case of UDP it uses uTP: http://www.bittorrent.org/beps/bep_0029.html * all messages are encrypted * it implements automatic peer discovery on LAN * it caches it's previous connections and is able to reuse them in the future * etc.