<page_title> List of TCP and UDP port numbers </page_title> <section_title> Registered ports </section_title> <table> <cell> 3544 <col_header> Port </col_header> </cell> <cell> Yes <col_header> UDP </col_header> </cell> <cell> Teredo tunneling <col_header> Description </col_header> </cell> </table>
The Teredo listens on UDP port 3544.