{
  "mapping-table" : {
    "mapping-entry": {
      "index": 58,
      "type": "static",
      "transport-protocol": 58,
      "internal-src-address": "2001:db8:85a3::8a2e:370:7334",
      "external-src-address": "10.1.1.4",
      "internal-src-port" : {
        "single-port-number" : 1234
      },
      "external-src-port" : {
        "single-port-number" : 5678
      }
    }
  }
}