3 ms·

You cant make a p2p connection over a NAT without exposing a port on the public side of the NAT.

• t0mas88 2y ago
  You can: https://en.wikipedia.org/wiki/Hole_punching_(networking) https://en.wikipedia.org/wiki/Hole_punching_(networking)
• voxic11 2y ago
  You aren't guaranteed to be able to do that but in practice most times you can.
• kccqzy 2y ago
  Go check out STUN and ICE. The best article I've found about NAT traversal is this article from Tailscale: https://tailscale.com/blog/how-nat-traversal-works https://tailscale.com/blog/how-nat-traversal-works
  • jvansc 2y ago
    https://sendfiles.dev/ https://sendfiles.dev/
    • yownie 2y ago
      is there a filesize limit for this?
    • kccqzy 2y ago
      That uses WebRTC, which uses the same NAT traversal tricks.
  • Fnoord 2y ago
    Not bad, though you don't even need STUN or ICE; https://github.com/samyk/pwnat https://github.com/samyk/pwnat https://github.com/samyk/slipstream https://github.com/samyk/slipstream