{
  "ipv4": {
    "input": {
      "filter": {
        "default-action": "accept",
        "rule": {
          "10": { "action": "accept", "state": "established" },
          "20": { "action": "drop", "state": "invalid" }
        }
      }
    },
    "forward": {
      "filter": {
        "default-action": "accept"
      }
    },
    "output": {
      "filter": {
        "default-action": "accept"
      }
    }
  },
  "ipv6": {
    "input": {
      "filter": {
        "default-action": "accept"
      }
    }
  }
}