x@y
  router = r1, transport = t1
  host host 127.0.0.1 [127.0.0.1] port=1225
  host host 127.0.0.1 [127.0.0.1] port=1226
  host host 127.0.0.1 [127.0.0.1] port=1227
  host host ipv4.ipv4.ipv4.ipv4 [ipv4.ipv4.ipv4.ipv4] port=1228
  host host ipv4.ipv4.ipv4.ipv4 [ipv4.ipv4.ipv4.ipv4] port=1223