View source for IP Configuration Packet

{| class="wikitable"
! style="background-color:#680022; color:white;" | Field
! style="background-color:#680022; color:white;" | Size (bits)
! style="background-color:#680022; color:white;" | Bit Range
! style="background-color:#680022; color:white;" | Description
! style="background-color:#680022; color:white;" | Breakdown
|-
! colspan="5" style="background:#D3D3D3;" | Header (10 bytes)
|-

|-
| Start byte
| 8
| 0 - 7
| Starting character
| $ (ASCII value 36)

|-
| Data length
| 12
| 8 - 19
| 2-byte length of the data following the header
| 

|-
| Number of data packets
| 5
| 20 - 24
| Number of packets
| 0–32

|-
| IMEI
| 50
| 25 - 74
| Unique device identifier
| 

|-
| Packet type
| 5
| 75 - 79
| Type of packet
| 05 - IP Configuration Packet
|-
! colspan="5" style="background:#D3D3D3;" | Data
|-
| Time
| 32
| 80-111
| UTC Timestamp
| UTC time in seconds

|-
| Time Zone
| 8
| 112-119
| Timezone in quarter-hours
| 22 = +5:30; each unit = 15 min; ranges -48 to 56

|-
| IP index
| 3
| 120-122
| IP type index
| 1: Customer IP

|-
| Status
| 1
| 123
| IP status
| 0 - Disabled, 1 - Enabled
|-
| FS mode
| 1
| 124
| File  System mode
| 0 - FIFO, 1 - LIFO
|-
| Protocol
| 3
| 125-127
| Communication protocol
| 0 - HTTP, 1 - HTTPS, 2 - TCP
|-
| Update rate (motion)
| 16
| 128-143
| Reporting interval while in motion
| In seconds
|-
| Update rate (halt)
| 16
| 144-159
| Reporting interval during halt
| In Minutes
|-
| Update rate (Sleep)
| 16
| 160-175
| Sleep mode reporting interval
| In Minutes
|-
| URL length
| 8
| 176-183
| Length of URL field
| In number of bytes
|-
| URL
| Varies
| 184 (184+N*8-1)
| URL data
| Length given by URL length
|-
! colspan="5" style="background:#D3D3D3;" | Tail (2 Bytes)
|-
| End Character
| 8
| 0 - 7
| Ending character
| * (ASCII value 42)
|-
| CRC
| 8
| 8 - 15
| Checksum
| 8-bit XOR from $ to * (excluding $ and *)
|}
<pre>
{ "HEX : 2401f0e21aeb7abfd58568abeb09163a000a000100011231332e3233322e31332e3233333a363038342a7d"  "imei": 862942074896044, "packet_type": 5, "no_packets": 1, "dateTime": 1756097289, "timezone": 22, "dateTime_tz": "2025-08-25 10:18:09", "ip_index": 1, "status": 1, "fs_mode": 1, "protocol": 2, "up_rate_ig_on": 10, "up_rate_ig_off": 1, "up_rate_sleep": 1, "url_length": 18, "url": "13.232.13.233:6084", "error_code": 0}
</pre>



<html lang="en">
<head>
  <meta charset="UTF-8">
  <style>
    body { font-family: Arial, sans-serif; }
    textarea { width: 100%; height: 100px; font-family: monospace; }
    button {
      padding: 10px 20px;
      border-radius: 20px;
      font-weight: bold;
      background-color: #680022;
      color: white;
      border: none;
      cursor: pointer;
    }
    button:hover {
      background-color: #4c0019;
    }
    table { width: 100%; border-collapse: collapse; margin-top: 20px; }
    th, td { border: 1px solid #ccc; padding: 8px; text-align: left; }
    th { background-color: #680022; color: white; }
  </style>
</head>
<body>

<h2>IP Configuration Packet Parser</h2>
<textarea id="packetInput" placeholder="Paste IP Configuration packet here..."></textarea><br>
<button onclick="parsePacket()">Parse Packet</button>

<table id="resultTable">
  <thead><tr><th>Field</th><th>Value</th></tr></thead>
  <tbody></tbody>
</table>

<script>
function hexToBits(hex) {
  return hex.match(/.{1,2}/g).map(byte => parseInt(byte, 16).toString(2).padStart(8, '0')).join('');
}
function bitsToInt(bits) {
  return parseInt(bits, 2);
}
function bitsToSignedInt(bits) {
  const val = parseInt(bits, 2);
  const max = 2 ** bits.length;
  return val >= max / 2 ? val - max : val;
}
function bigIntFromBits(bits) {
  return BigInt('0b' + bits).toString();
}
function bitsToAscii(bits) {
  return bits.match(/.{8}/g).map(b => String.fromCharCode(parseInt(b, 2))).join('');
}
function addRow(label, value) {
  const row = document.createElement("tr");
  row.innerHTML = `<td>${label}</td><td>${value}</td>`;
  document.querySelector("#resultTable tbody").appendChild(row);
}

function parsePacket() {
  const hex = document.getElementById("packetInput").value.trim();
  const resultBody = document.querySelector("#resultTable tbody");
  resultBody.innerHTML = "";

  if (!hex.startsWith("24")) {
    alert("Invalid packet (must start with 0x24)");
    return;
  }

  const bits = hexToBits(hex);

  const imei = bigIntFromBits(bits.slice(25, 75)); // Corrected IMEI (50 bits)
  addRow("IMEI", imei);

  const packetType = bitsToInt(bits.slice(75, 80)); // 5 bits
  addRow("Packet Type", packetType);

  const ts = bitsToInt(bits.slice(80, 112));
  const timezoneRaw = bitsToSignedInt(bits.slice(112, 120));
  const tzOffsetMin = timezoneRaw * 15;
  const localTime = new Date((ts + tzOffsetMin * 60) * 1000).toISOString().replace("T", " ").split(".")[0];

  addRow("DateTime (Epoch)", ts);
  addRow("TimeZone", timezoneRaw);
  addRow("DateTime (Local)", localTime);

  const ipIndex = bitsToInt(bits.slice(120, 123));  // 2 bits
  const status = bitsToInt(bits.slice(123, 124));   // 1 bit
  const fsMode = bitsToInt(bits.slice(124, 125));   // 1 bit
  const protocol = bitsToInt(bits.slice(125, 128)); // 2 bits

  addRow("IP Index", ipIndex);
  addRow("Status", status);
  addRow("FS Mode", fsMode);
  addRow("Protocol", protocol); // 0=HTTP, 1=HTTPS, 2=TCP, 3-MQTT

  const rateOn = bitsToInt(bits.slice(128, 144));    // 16 bits
  const rateOff = bitsToInt(bits.slice(144, 160));   // 16 bits
  const rateSleep = bitsToInt(bits.slice(160, 176)); // 16 bits

  addRow("Update Rate (Ign ON)", `${rateOn}s`);
  addRow("Update Rate (Ign OFF)", `${rateOff}Min`);
  addRow("Update Rate (Sleep)", `${rateSleep}Min`);

  const urlLengthBytes = bitsToInt(bits.slice(176, 184)); // 7 bits = bytes
  const urlBits = bits.slice(184, 184 + urlLengthBytes * 8);
  const url = bitsToAscii(urlBits).split('*')[0]; // Remove garbage after '*'

  addRow("URL Length", urlLengthBytes * 1); // actual in bits for output match
  addRow("URL", url);
}
</script>

</body>
</html>