Packet #17977979 Success

NODEINFO_APP packet from Big IRN2 (IRN2) to !5cbb5b31

46
Total Receptions
2
Unique Gateways
2
Hop Count
73
Payload Bytes
Packet Information
Database ID: 17977979
Mesh Packet ID: 0x7ed33692
Used for correlation across gateways
Timestamp: 2026-03-27 19:09:20 UTC
From Node: Big IRN2 (IRN2)
To Node: !5cbb5b31 (5b31)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Mechanicus Cadia (M3)
Channel: MediumFast
RSSI: -123 dBm
SNR: -13.5 dBm
Hop Info: 2/7 hops
Start: 7, Limit: 5
Relay Node: 75
Last byte of the last hop that relayed this packet
Payload Data
Protocol: NODEINFO_APP
Size: 73 bytes
Decoded: Yes
Decoded Data:
Long Name:Big IRN2
Short Name:IRN2
Node ID:!0407cef8
MAC Address:rKcEB874
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:73 bytes
Gateway:!4359649c
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:2 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !4359649c
Node ID format
channel_id MediumFast
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 67620600
Source node ID
uint32
to 1555782449
Target node ID
uint32
decoded.portnum 4
NODEINFO_APP
enum
decoded.payload_length 73 bytes size
hop_limit 5
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 2
Calculated: hop_start - hop_limit
derived
rx_rssi -123.0 dBm
Signal strength at gateway
int32
rx_snr -13.50 dB
Signal quality at gateway
float
rx_time 1774638558
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 117
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774638560.2534475
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: MediumFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !4359649c
Signal Metrics: RSSI: -123.0 dBm
SNR: -13.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:73 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!0407cef8", "long_name": "Big IRN2", "short_name": "IRN2", "macaddr": "rKcEB874", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!4359649c", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 67620600, "to": 1555782449, "id": 2127771282, "rx_time": 1774638558, "rx_snr": -13.5, "rx_rssi": -123, "hop_limit": 5, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 117, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921303430376365663812084269672049524e321a0449524e322206aca70407cef8282b422019a8354c7ad301985ca0e4e05f95098064a99ba6e84c11d444af8eca6ee8b7104800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!0407cef8", "long_name": "Big IRN2", "short_name": "IRN2", "macaddr": "rKcEB874", "hw_model": "HELTEC_V3", "public_key": "Gag1THrTAZhcoOTgX5UJgGSpm6boTBHURK+Oym7otxA=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a0921303430376365663812084269672049524e321a0449524e322206aca70407cef8282b422019a8354c7ad301985ca0e4e05f95098064a99ba6e84c11d444af8eca6ee8b7104800
Hex Analysis:
Size:73 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
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Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
Mechanicus Cadia (M3) Primary 0.000s
Reference
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC Current
Mechanicus Cadia (M3) -0.350s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.318s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.293s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.268s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.244s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.215s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.187s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.164s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.141s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.119s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.098s
Before
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.076s
Before
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.054s
Before
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.029s
Before
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.023s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.046s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.068s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.089s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.110s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.133s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.157s
After
-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.180s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.203s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.225s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.247s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.268s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.297s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.320s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.345s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.368s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.392s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.414s
After
-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.436s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.458s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.495s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.533s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.558s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.582s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.607s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.630s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.651s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.697s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.718s
After
-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.741s
After
-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Alpha (M1) +0.765s
After
-111.0 dBm -4.25 dB 2 75 LongFast 2026-03-27 19:09:21 UTC View
46

Total Receptions

2

Unique Gateways