Packet #3107287 Success

NODEINFO_APP packet from BRC15 TL1 (LF) 🇧🇬📡 (BRN0) to CAR (DTMF)

1
Total Receptions
1
Unique Gateways
0
Hop Count
92
Payload Bytes
Packet Information
Database ID: 3107287
Mesh Packet ID: 0x32fe159f
Used for correlation across gateways
Timestamp: 2026-05-03 13:24:05 UTC
From Node: BRC15 TL1 (LF) 🇧🇬📡 (BRN0)
To Node: CAR (DTMF)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: BRC61 TD 🇧🇬📡 (BRN4)
Channel: LongFast
RSSI: -82 dBm
SNR: 5.25 dBm
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 46 BRN0
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 92 bytes
Decoded: Yes
Decoded Data:
Long Name:BRC15 TL1 (LF) 🇧🇬📡
Short Name:BRN0
Node ID:!ce4c8646
MAC Address:5wnOTIZG
Hardware:SEEED_WIO_TRACKER_L1
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:92 bytes
Gateway:!f1bc1b14
Channel:LongFast
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
+ 2 more...
Exposure Risks:
âš  Default channel - no encryption
âš  Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !f1bc1b14
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (92 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3461121606
Source node ID 		uint32
to 2799222865
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 92 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 -82.0 dBm
Signal strength at gateway 		int32
rx_snr 5.25 dB
Signal quality at gateway 		float
rx_time 1777814644
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority Not set enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 70
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1777814645.9123886
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
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !f1bc1b14
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -82.0 dBm
SNR: 5.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:92 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!ce4c8646", "long_name": "BRC15 TL1 (LF) 🇧🇬📡", "short_name": "BRN0", "macaddr": "5wnOTIZG", "hw_model": "SEEED_WIO_TRACKER_L1" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!f1bc1b14", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3461121606, "to": 2799222865, "id": 855512479, "rx_time": 1777814644, "rx_snr": 5.25, "rx_rssi": -82, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 70, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216365346338363436121b425243313520544c3120284c462920f09f87a7f09f87acf09f93a11a0442524e302206e709ce4c864628634220845502e27fd7240d89a4a1e8dcfc403e3725d3feb9f2b6381505a6b38014f7284800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ce4c8646", "long_name": "BRC15 TL1 (LF) 🇧🇬📡", "short_name": "BRN0", "macaddr": "5wnOTIZG", "hw_model": "SEEED_WIO_TRACKER_L1", "public_key": "hFUC4n/XJA2JpKHo3PxAPjcl0/658rY4FQWms4AU9yg=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (92 bytes)
0a09216365346338363436121b425243313520544c3120284c462920f09f87a7f09f87acf09f93a11a0442524e302206e709ce4c864628634220845502e27fd7240d89a4a1e8dcfc403e3725d3feb9f2b6381505a6b38014f7284800
Hex Analysis:
Size:92 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
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
BRC61 TD 🇧🇬📡 (BRN4) Primary 0.000s
Reference 		-82.0 dBm 5.25 dB 0 46 BRN0 LongFast 2026-05-03 13:24:05 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways