Udp hole punching example

1. How does UDP hole punching work?
2. What is an example of hole punching?
3. What is TCP UDP hole punching?
4. What is UDP hole punching behind NAT?

How does UDP hole punching work?

UDP hole punching establishes connectivity between two hosts communicating across one or more network address translators. Typically, third-party hosts on the public transit network are used to establish UDP port states that may be used for direct communications between the communicating hosts.

What is an example of hole punching?

Examples. VoIP products, online gaming applications, and P2P networking software all use hole punching. Telephony software Skype uses hole punching to allow users to communicate with one or more users audibly.

What is TCP UDP hole punching?

TCP hole punching is an experimentally used NAT traversal technique for establishing a TCP connection between two peers on the Internet behind NAT devices. NAT traversal is a general term for techniques that establish and maintain TCP/IP network and/or TCP connections traversing NAT gateways.

What is UDP hole punching behind NAT?

UDP hole punching is one of the most common techniques used to establish UDP connections with systems behind NAT. It is called UDP hole punching because it punches a hole in the firewall of the network which allows a packet from an outside system to successfully reach the desired client on a network using NAT.