4 ms·
It's a bit smarter than just using an http tunnel. Skype is capable of direct client-to-client connections, despite intervening NAT. It's pretty clever -- with
by ef4 14y ago
It's a bit smarter than just using an http tunnel.
Skype is capable of direct client-to-client connections, despite intervening NAT. It's pretty clever -- with the server's help as coordinator, the clients both initiate the connection, causing their own NAT routers to accept the inbound packets from the other side.
- 0x0 14y agoThat's also called STUN, I believe http://en.wikipedia.org/wiki/STUN http://en.wikipedia.org/wiki/STUN (or probably a variant)
- BrokenPipe 14y agoI think that's called hole punching http://en.wikipedia.org/wiki/Hole_punching http://en.wikipedia.org/wiki/Hole_punching