Packet #18016290 Success

NODEINFO_APP packet from Big IRN1 (IRN1) to !126b9349

46
Total Receptions
2
Unique Gateways
3
Hop Count
73
Payload Bytes
Packet Information
Database ID: 18016290
Mesh Packet ID: 0xe1120683
Used for correlation across gateways
Timestamp: 2026-03-27 21:32:22 UTC
From Node: Big IRN1 (IRN1)
To Node: !126b9349 (9349)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Mechanicus Cadia (M3)
Channel: LongFast
RSSI: -125 dBm
SNR: -15.5 dBm
Hop Info: 3/7 hops
Start: 7, Limit: 4
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 IRN1
Short Name:IRN1
Node ID:!040692ec
MAC Address:rKcEBpLs
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:LongFast
Payload Type:NODEINFO_APP
Hop Count:3 / 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 !4359649c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 67539692
Source node ID
uint32
to 309039945
Target node ID
uint32
decoded.portnum 4
NODEINFO_APP
enum
decoded.payload_length 73 bytes size
hop_limit 4
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 3
Calculated: hop_start - hop_limit
derived
rx_rssi -125.0 dBm
Signal strength at gateway
int32
rx_snr -15.50 dB
Signal quality at gateway
float
rx_time 1774647140
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 1774647142.3355885
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !4359649c
Signal Metrics: RSSI: -125.0 dBm
SNR: -15.50 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": "!040692ec", "long_name": "Big IRN1", "short_name": "IRN1", "macaddr": "rKcEBpLs", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!4359649c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 67539692, "to": 309039945, "id": 3776054915, "rx_time": 1774647140, "rx_snr": -15.5, "rx_rssi": -125, "hop_limit": 4, "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": "0a0921303430363932656312084269672049524e311a0449524e312206aca7040692ec282b4220c7df8cd6db5caa47556f0aeb69bb719291c348333fe123e5cfadcd1f050e3f684800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!040692ec", "long_name": "Big IRN1", "short_name": "IRN1", "macaddr": "rKcEBpLs", "hw_model": "HELTEC_V3", "public_key": "x9+M1ttcqkdVbwrrabtxkpHDSDM/4SPlz63NHwUOP2g=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a0921303430363932656312084269672049524e311a0449524e312206aca7040692ec282b4220c7df8cd6db5caa47556f0aeb69bb719291c348333fe123e5cfadcd1f050e3f684800
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
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC Current
Mechanicus Cadia (M3) -0.086s
Before
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) -0.064s
Before
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) -0.043s
Before
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) -0.022s
Before
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.024s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.048s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.072s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.095s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.117s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.138s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.160s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.181s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.204s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.228s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.252s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.275s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.296s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.317s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.338s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.377s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.400s
After
-125.0 dBm -15.50 dB 3 75 MediumFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.424s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.446s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.469s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.489s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.511s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.536s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.556s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.580s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.604s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.627s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.655s
After
-125.0 dBm -15.50 dB 3 75 ShortFast 2026-03-27 21:32:22 UTC View
Mechanicus Cadia (M3) +0.677s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.699s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.720s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.742s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.766s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.790s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.813s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.837s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.858s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.891s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.912s
After
-125.0 dBm -15.50 dB 3 75 ShortTurbo 2026-03-27 21:32:23 UTC View
Mechanicus Cadia (M3) +0.932s
After
-125.0 dBm -15.50 dB 3 75 LongFast 2026-03-27 21:32:23 UTC View
Mechanicus Alpha (M1) +0.984s
After
-111.0 dBm -4.50 dB 3 75 LongFast 2026-03-27 21:32:23 UTC View
46

Total Receptions

2

Unique Gateways