docker_dns_bind_EINVAL

$ docker-dns --config $PWD/config.js
[DD] info Loading config from /home/cristian/.docker-dns/config.js
[DD] info debuging enabled
[DD] debug public.dockerA new Dinspect for docker public.dockerA
[DD] debug public.dockerA getting containers for docker public.dockerA
[DD] debug public.dockerA inspecting 1 containers
[DD] debug 7e20400c57a4 new containter object with uuid12: 7e20400c57a4
[DD] debug ip  { internal: '172.17.0.18', exposed: null }
[DD] debug 7e20400c57a4 imgname: ambari-singlenode
[DD] debug 7e20400c57a4 hostname: amb0
[DD] debug 7e20400c57a4 ports:  8080/tcp [ { HostIp: '', HostPort: '' } ]
[DD] debug 7e20400c57a4 services:  [ { port: '',
    boundip: '',
    portproto: '8080/tcp',
    lookup:
     { name: 'http-alt',
       port: 8080,
       proto: 'tcp',
       portproto: '8080/tcp' } } ]
[DD] debug back from inspection, off to build
[DD] debug 7e20400c57a4 starting _buildAnCNAMERecords
[DD] debug 7e20400c57a4 done with A and CNAME records for local ip 172.17.0.18
[DD] debug 7e20400c57a4 starting _buildAnCNAMERecords
[DD] debug 7e20400c57a4 no ip, calling back
[DD] debug 7e20400c57a4 done with A and CNAME records for exposed ip null
[DD] debug service port or bound ip missing:  { port: '',
  boundip: '',
  portproto: '8080/tcp',
  lookup:
   { name: 'http-alt',
     port: 8080,
     proto: 'tcp',
     portproto: '8080/tcp' } }
[DD] debug 7e20400c57a4 calling back from _buildSRVRecords
[DD] debug 7e20400c57a4 done with SRVrecords
[DD] debug 7e20400c57a4 all records built, calling back
[DD] debug public.dockerA _.union of records finished
[DD] info public.dockerA built records
[DD] debug back from build, deliver recs to dns server
[DD] info loading new dns records
[DD] info docker-dns initialized
events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: bind EINVAL
    at exports._errnoException (util.js:742:11)
    at dgram.js:222:28
    at dns.js:82:18
    at process._tickCallback (node.js:372:11)