x@y
  router = r1, transport = t1
  host host 127.0.0.1 [127.0.0.1] port=1225 ad=no
  host host 127.0.0.1 [127.0.0.1] port=1226 ad=no
  host host 127.0.0.1 [127.0.0.1] port=1227 ad=no
  host host ipv4.ipv4.ipv4.ipv4 [ipv4.ipv4.ipv4.ipv4] port=1228 ad=no
  host host ipv4.ipv4.ipv4.ipv4 [ipv4.ipv4.ipv4.ipv4] port=1223 ad=no