Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

What service uses UDP port 242? According to nmap, it says that the service or protocol named "direct" uses the port, but Google search does not seem to bring me an answer.

share|improve this question

1 Answer 1

up vote 1 down vote accepted

It was once assigned to Herb Sutter for Peer-Direct (PDRE). Peer-Direct was an application to replicate databases. UDP and TCP ports are assigned together, but PDRE never used UDP for any purpose. So it is basically free for anyone to use for any purpose.

Any service could use it. No service that I know of typically uses it.

share|improve this answer
IANA registered ports reference: iana.org/assignments/service-names-port-numbers/… –  Daniel Beck Aug 27 '12 at 7:53

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.