UDP Hole Punching

Exploring possible improvements to the RFC5128 UDP Hole Punching technique.

Contents

• TFTP-NAT-UHP.md - helping EIM-NAT (with TFTP-ALG) <-> non-EIM-NAT scenarios
• TFTP-NAT-GUESS.md - enabling non-EIM-NAT (with TFTP-ALG) <-> non-EIM-NAT scenarios without a relay server

Tools

• bin/tftptest - Simple test tool for checking TFTP connectivity
• bin/tftpspray - Helper tool for the TFTP-Assisted birthday paradox port guessing
• tftpuhpd TFTP STUN-like server for bin/tftptest

How to Help

You can contribute by sharing information about your ISP and router in issue #1.

TODO

• Investigate SIP-ALG.