In the spirit of jwz’s RFC announcement, the IANA assigned a registered port to 2ping this week! Starting with the next release, 2ping will officially be operating on port 15998/udp.

2ping           15998/udp  2ping Bi-Directional Ping Service
#                          Ryan Finnie <ryan&finnie.org> 06 October 2010

A new release will probably be coming this weekend, which includes the default port number change. Also included will be a new opcode to allow the peers to specify host processing latency (the amount of time elapsed between a packet being received and a reply being sent out, measured in microseconds). The release will most likely jump from version 0.0.3 to 0.9.0. Then hopefully it’ll just be some last minute work before a protocol finalization and a 1.0 release!