Packet #3902116 Success

NODEINFO_APP packet from Sierra1 (Si01) to Solar Gateway (SLGT)

2
Total Receptions
2
Unique Gateways
1
Hop Count
72
Payload Bytes
Packet Information
Database ID: 3902116
Mesh Packet ID: 0x9cea038c
Used for correlation across gateways
Timestamp: 2025-07-16 18:18:14 UTC
From Node: Sierra1 (Si01)
To Node: Solar Gateway (SLGT)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: [TLGO] Base 📡🌐 (TLG0)
Channel: LongFast
RSSI: -121 dBm
SNR: -14.75 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Payload Data
Protocol: NODEINFO_APP
Size: 72 bytes
Decoded: Yes
Decoded Data:
Long Name:Sierra1
Short Name:Si01
Node ID:!ba0cba34
MAC Address:ECC6DLo0
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:72 bytes
Gateway:!da638a24
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:1 / 3
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 !da638a24
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (72 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3121396276
Source node ID 		uint32
to 1754607880
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 72 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -121.0 dBm
Signal strength at gateway 		int32
rx_snr -14.75 dB
Signal quality at gateway 		float
rx_time 1752689892
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 32
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1752689894.5559776
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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da638a24
Signal Metrics: RSSI: -121.0 dBm
SNR: -14.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:72 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!ba0cba34", "long_name": "Sierra1", "short_name": "Si01", "macaddr": "ECC6DLo0", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da638a24", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3121396276, "to": 1754607880, "id": 2632582028, "rx_time": 1752689892, "rx_snr": -14.75, "rx_rssi": -121, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 32, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092162613063626133341207536965727261311a045369303122061020ba0cba34282b4220b215f4f0720af88972ea17644365c44ec418afba1e9d8c28057c5b0b7e493d694800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ba0cba34", "long_name": "Sierra1", "short_name": "Si01", "macaddr": "ECC6DLo0", "hw_model": "HELTEC_V3", "public_key": "shX08HIK+Ily6hdkQ2XETsQYr7oenYwoBXxbC35JPWk=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (72 bytes)
0a092162613063626133341207536965727261311a045369303122061020ba0cba34282b4220b215f4f0720af88972ea17644365c44ec418afba1e9d8c28057c5b0b7e493d694800
Hex Analysis:
Size:72 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
[TLGO] Base 📡🌐 (TLG0) Primary 0.000s
Reference 		-121.0 dBm -14.75 dB 1 LongFast 2025-07-16 18:18:14 Current
EA4GAX Sergio (4GAX) +6.180s
After 		-116.0 dBm 5.00 dB 3 LongFast 2025-07-16 18:18:20 View
2

Total Receptions

2

Unique Gateways