Packet #5944316 Success

NODEINFO_APP packet from Meshtastic b520 (b520) to KO85ST/R3BEF (3BEF)

11
Total Receptions
9
Unique Gateways
6
Hop Count
80
Payload Bytes
Packet Information
Database ID: 5944316
Mesh Packet ID: 0xf15fb5c0
Used for correlation across gateways
Timestamp: 2026-01-14 18:26:17 UTC
From Node: Meshtastic b520 (b520)
To Node: KO85ST/R3BEF (3BEF)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: SYSXX BGW8 (SXB8)
Channel: LongFast
RSSI: -125 dBm
SNR: -15.75 dBm
Hop Info: 6/7 hops
Start: 7, Limit: 1
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic b520
Short Name:b520
Node ID:!9e76b520
MAC Address:8J6edrUg
Hardware:HELTEC_V3
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:80 bytes
Gateway:!efffff01
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:6 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !efffff01
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2658579744
Source node ID 		uint32
to 313596624
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 6
Calculated: hop_start - hop_limit 		derived
rx_rssi -125.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1768404376
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 40
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1768404377.3884661
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
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (6 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !efffff01
Signal Metrics: RSSI: -125.0 dBm
SNR: -15.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:80 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!9e76b520", "long_name": "Meshtastic b520", "short_name": "b520", "macaddr": "8J6edrUg", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!efffff01", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658579744, "to": 313596624, "id": 4049581504, "rx_time": 1768404376, "rx_snr": -15.75, "rx_rssi": -125, "hop_limit": 1, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 40, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213965373662353230120f4d65736874617374696320623532301a04623532302206f09e9e76b520282b4220d777206a6998ec683db2b1d739c15449874ff2ce6e7715e5e40cd0627fa65e114800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9e76b520", "long_name": "Meshtastic b520", "short_name": "b520", "macaddr": "8J6edrUg", "hw_model": "HELTEC_V3", "public_key": "13cgammY7Gg9srHXOcFUSYdP8s5udxXl5AzQYn+mXhE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09213965373662353230120f4d65736874617374696320623532301a04623532302206f09e9e76b520282b4220d777206a6998ec683db2b1d739c15449874ff2ce6e7715e5e40cd0627fa65e114800
Hex Analysis:
Size:80 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
SYSXX BGW8 (SXB8) Primary 0.000s
Reference 		-125.0 dBm -15.75 dB 6 LongFast 2026-01-14 18:26:17 Current
HOPS GW (ZER0) -19.562s
Before 		-103.0 dBm -9.50 dB 7 LongFast 2026-01-14 18:25:57 View
Aster-02 (AST2) -9.182s
Before 		-87.0 dBm -8.50 dB 5 LongFast 2026-01-14 18:26:08 View
Zamkad8 (zmkd) -2.583s
Before 		-111.0 dBm -8.00 dB 6 LongFast 2026-01-14 18:26:14 View
Zamkad8 (zmkd) -2.267s
Before 		-111.0 dBm -8.00 dB 7 LongFast 2026-01-14 18:26:15 View
SYSXX YGW8 (SXY8) -0.078s
Before 		-103.0 dBm -11.75 dB 6 LongFast 2026-01-14 18:26:17 View
RN3ABX Georgy 2 (ABX2) +0.431s
After 		-120.0 dBm -12.75 dB 6 LongFast 2026-01-14 18:26:17 View
Dragon868-1 (D1) +9.921s
After 		-104.0 dBm -13.00 dB 4 LongFast 2026-01-14 18:26:27 View
Dragon868-1 (D1) +10.032s
After 		-104.0 dBm -13.00 dB 7 LongFast 2026-01-14 18:26:27 View
ZA_MKAD_22_868_1 (8681) +12.107s
After 		-111.0 dBm 6.25 dB 5 LongFast 2026-01-14 18:26:29 View
NODE_SOLAR_868 (8682) +12.292s
After 		-102.0 dBm 4.50 dB 5 LongFast 2026-01-14 18:26:29 View
11

Total Receptions

9

Unique Gateways