Packet #147597 Success

NODEINFO_APP packet from LZ2ELM tracker🇧🇬 (2ELM) to LX1XXL (M777)

4
Total Receptions
2
Unique Gateways
0
Hop Count
79
Payload Bytes
Packet Information
Database ID: 147597
Mesh Packet ID: 0x5a555dde
Used for correlation across gateways
Timestamp: 2025-09-05 16:46:09 UTC
From Node: LZ2ELM tracker🇧🇬 (2ELM)
To Node: LX1XXL (M777)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: LZ2ELM tracker🇧🇬 (2ELM)
Channel: Bulgaria
RSSI: Unknown
SNR: Unknown
Hop Info: 0/2 hops
Start: 2, Limit: 2
Payload Data
Protocol: NODEINFO_APP
Size: 79 bytes
Decoded: Yes
Decoded Data:
Long Name:LZ2ELM tracker
Short Name:2ELM
Node ID:!62c6382e
MAC Address:2YVixjgu
Hardware:TRACKER_T1000_E
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:79 bytes
Gateway:!62c6382e
Channel:Bulgaria
Payload Type:NODEINFO_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
âš  Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !62c6382e
Node ID format
channel_id Bulgaria
packet MeshPacket (79 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1657157678
Source node ID 		uint32
to 237686442
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 79 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1757079964
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 10
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 46
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1757079969.3024719
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Custom channel: Bulgaria
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !62c6382e
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:79 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!62c6382e", "long_name": "LZ2ELM tracker", "short_name": "2ELM", "macaddr": "2YVixjgu", "hw_model": "TRACKER_T1000_E" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!62c6382e", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1657157678, "to": 237686442, "id": 1515544030, "rx_time": 1757079964, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 46, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213632633633383265120e4c5a32454c4d20747261636b65721a0432454c4d2206d98562c6382e284738014220e73c60e73a60a7f9840d1f366f4ecba61d4ee6fe0765e8d3d15e5726a86f9c58", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!62c6382e", "long_name": "LZ2ELM tracker", "short_name": "2ELM", "macaddr": "2YVixjgu", "hw_model": "TRACKER_T1000_E", "role": "CLIENT_MUTE", "public_key": "5zxg5zpgp/mEDR82b07Lph1O5v4HZejT0V5XJqhvnFg=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (79 bytes)
0a09213632633633383265120e4c5a32454c4d20747261636b65721a0432454c4d2206d98562c6382e284738014220e73c60e73a60a7f9840d1f366f4ecba61d4ee6fe0765e8d3d15e5726a86f9c58
Hex Analysis:
Size:79 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
LZ2ELM tracker🇧🇬 (2ELM) Primary 0.000s
Reference 		Unknown Unknown 0 Bulgaria 2025-09-05 16:46:09 Current
🤖 Telegram Bot Varna (TBOT) -3.667s
Before 		-102.0 dBm -13.00 dB 0 Bulgaria 2025-09-05 16:46:05 View
🤖 Telegram Bot Varna (TBOT) -3.651s
Before 		-102.0 dBm -13.00 dB 0 Bulgaria 2025-09-05 16:46:05 View
LZ2ELM tracker🇧🇬 (2ELM) -0.035s
Before 		Unknown Unknown 0 Bulgaria 2025-09-05 16:46:09 View
4

Total Receptions

2

Unique Gateways