dns-sd https://tools.ietf.org/html/rfc6762#section-7.1 http://www.multicastdns.org/ http://www.dns-sd.org/ http://viviendolared.blogspot.com/2010/04/pequeeeena-intro-mdns-multicast-dns.html mirage/ocaml-dns#41 https://www.researchgate.net/publication/271466428_Service_discovery_in_resource_constrained_networks_using_multicast_DNS Respostes unicast posant bit de clase a 1 https://github.com/brutella/dnssd/blob/master/mdns.go