tailscale,比较方便，偶尔延迟巨高 
zerotier,不方便，需要在网页审批、查看ip,偶尔延迟也高 
openp2p，GitHub - openp2p-cn/openp2p: OpenP2P is a lightweight P2P sharing network. Support Cone,Symmetric(NAT1-NAT4),UPNP,IPv6,both UDP&TCP punch. You can build you private sharing network, or uses the public sharing network 
easytier，GitHub - EasyTier/EasyTier: A simple, decentralized mesh VPN with WireGuard support. 
皎月连 
moonlight 
cloudf...