{
  "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": "underflow",
        "handle": 0
      }
    },
    {
      "chain": {
        "family": "inet",
        "table": "filter",
        "name": "input",
        "handle": 0,
        "type": "filter",
        "hook": "input",
        "prio": 0,
        "policy": "drop"
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "icmp",
                  "field": "type"
                }
              },
              "right": "echo-reply"
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "input",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "ip",
                  "field": "saddr"
                }
              },
              "right": "127.0.0.1"
            }
          },
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "ip",
                  "field": "daddr"
                }
              },
              "right": "127.0.0.2"
            }
          },
          {
            "counter": {
              "packets": 3,
              "bytes": 252
            }
          },
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "inet",
        "table": "filter",
        "chain": "input",
        "handle": 0,
        "expr": [
          {
            "goto": {
              "target": "underflow"
            }
          }
        ]
      }
    }
  ]
}