RIOT-OS/RIOT — pull request #667 by benpicco (2014-02-09 23:09:01+00:00)
Title: allow to register ICMPv6 echo reply handler

Currently ICMPv6 echo messages are rather useless as it's impossible to determine whether a reply was received without debug output turned on.
This allows to register a function as a ICMPv6 echo reply handler that gets called whenever a echo reply has been received.