### In config/config.exs
config :libcluster,
  topologies: [
    your_app: [
      strategy: Cluster.Strategy.Gossip,
      config: [
        port: 45892,
        if_addr: "0.0.0.0",
        multicast_addr: "230.1.1.251",
        multicast_ttl: 1
      ]
    ]
  ]