{
  "nftables": [
    {
      "metainfo": {
        "version": "VERSION",
        "release_name": "RELEASE_NAME",
        "json_schema_version": 1
      }
    },
    {
      "table": {
        "family": "inet",
        "name": "filter",
        "handle": 0
      }
    },
    {
      "chain": {
        "family": "inet",
        "table": "filter",
        "name": "udp_input",
        "handle": 0
      }
    },
    {
      "chain": {
        "family": "inet",
        "table": "filter",
        "name": "tcp_input",
        "handle": 0
      }
    },
    {
      "set": {
        "family": "inet",
        "name": "udp_accepted",
        "table": "filter",
        "type": "inet_service",
        "handle": 0,
        "elem": [
          500,
          4500
        ]
      }
    },
    {
      "set": {
        "family": "inet",
        "name": "tcp_accepted",
        "table": "filter",
        "type": "inet_service",
        "handle": 0,
        "elem": [
          80,
          443
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "udp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "udp",
                  "field": "dport"
                }
              },
              "right": {
                "range": [
                  1,
                  128
                ]
              }
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "udp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "udp",
                  "field": "dport"
                }
              },
              "right": "@udp_accepted"
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "udp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "udp",
                  "field": "dport"
                }
              },
              "right": 53
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "tcp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "tcp",
                  "field": "dport"
                }
              },
              "right": {
                "set": [
                  {
                    "range": [
                      1,
                      128
                    ]
                  },
                  {
                    "range": [
                      8888,
                      9999
                    ]
                  }
                ]
              }
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "tcp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "tcp",
                  "field": "dport"
                }
              },
              "right": "@tcp_accepted"
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "tcp_input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "tcp",
                  "field": "dport"
                }
              },
              "right": {
                "range": [
                  1024,
                  65535
                ]
              }
            }
          },
          {
            "accept": null
          }
        ]
      }
    }
  ]
}