Hi,
I made an OpenWrt package for ZeroTier (https://www.zerotier.com/).
It is a mostly decentralized VPN layer 2 bridge.
The package is about 280KB (also needs libstdcpp) and memory consumption is about 18MB.
But hey, it works.
https://github.com/mwarning/zerotier-openwrt
(Last edited by mwarning on 28 Jan 2015, 00:28)