
UDP hole punching
The Backend Engineering Show with Hussein Nasser
00:00
What Happens When You Plunge a Hole in Your Router?
What happens here is, to the machine here will send a packet to somewhere outside in the internet, specifying its sor port. Says, blu will say, he send it. And the fact that we sent something out through my router will punch a metaphorical hole in my routers wall. An entry will be created that says, hey, this machine, this private machine, and this is my u d pport. You send it up. So now a record is created. But one thing we we need to learn here is this is d p. Hole punching doesn't always work. Rit some riters implement certain nat type that is too strict. i talked about all that in my
Transcript
Play full episode