Packet #17991614 Success

NODEINFO_APP packet from Big IRN2 (IRN2) to !da546654

46
Total Receptions
2
Unique Gateways
2
Hop Count
73
Payload Bytes
Packet Information
Database ID: 17991614
Mesh Packet ID: 0xbb992a94
Used for correlation across gateways
Timestamp: 2026-03-27 20:00:21 UTC
From Node: Big IRN2 (IRN2)
To Node: !da546654 (6654)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Mechanicus Cadia (M3)
Channel: ShortFast
RSSI: -127 dBm
SNR: -18.25 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:ShortFast
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 ShortFast
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 3662964308
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 -127.0 dBm
Signal strength at gateway
int32
rx_snr -18.25 dB
Signal quality at gateway
float
rx_time 1774641619
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 1774641621.8681328
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: ShortFast
  • ✓ 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: -127.0 dBm
SNR: -18.25 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": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 67620600, "to": 3662964308, "id": 3147377300, "rx_time": 1774641619, "rx_snr": -18.25, "rx_rssi": -127, "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
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC Current
Mechanicus Cadia (M3) -0.727s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.692s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.668s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.636s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.615s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.591s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.567s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.544s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.521s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.500s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.480s
Before
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.459s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.438s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.414s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.390s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.369s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.347s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.326s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.299s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.273s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.249s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.226s
Before
-127.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.202s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.179s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.156s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.135s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.113s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.092s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.071s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.047s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) -0.023s
Before
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.023s
After
-127.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.044s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.065s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.087s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.108s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.131s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:21 UTC View
Mechanicus Cadia (M3) +0.153s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.176s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.199s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.219s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.240s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.261s
After
-127.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 20:00:22 UTC View
Mechanicus Cadia (M3) +0.286s
After
-127.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 20:00:22 UTC View
Mechanicus Alpha (M1) +0.310s
After
-112.0 dBm -5.75 dB 2 75 LongFast 2026-03-27 20:00:22 UTC View
46

Total Receptions

2

Unique Gateways