Packet #17977975 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: 17977975
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: LongFast
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:LongFast
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
+ 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 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 1774638560.1555502
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 (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": "LongFast", "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

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 LongFast 2026-03-27 19:09:20 UTC Current
Mechanicus Cadia (M3) -0.252s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.220s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.195s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.170s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:19 UTC View
Mechanicus Cadia (M3) -0.146s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.117s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.089s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.066s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.043s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) -0.021s
Before 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.021s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.044s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.069s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.098s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.121s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.144s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.166s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.187s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.208s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.230s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.254s
After 		-123.0 dBm -13.50 dB 2 75 MediumFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.278s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.301s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.323s
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) +0.366s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.395s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.418s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.443s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.466s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.490s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.512s
After 		-123.0 dBm -13.50 dB 2 75 ShortFast 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.534s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.556s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.593s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.631s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.656s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.680s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.705s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.728s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.749s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.795s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.816s
After 		-123.0 dBm -13.50 dB 2 75 ShortTurbo 2026-03-27 19:09:20 UTC View
Mechanicus Cadia (M3) +0.839s
After 		-123.0 dBm -13.50 dB 2 75 LongFast 2026-03-27 19:09:20 UTC View
Mechanicus Alpha (M1) +0.863s
After 		-111.0 dBm -4.25 dB 2 75 LongFast 2026-03-27 19:09:21 UTC View
46

Total Receptions

2

Unique Gateways