Packet #2237440 Success

NODEINFO_APP packet from Meshtastic 4a50 (4a50) to Sierra norte Madrid ⛰️ (SNM)

4
Total Receptions
4
Unique Gateways
2
Hop Count
80
Payload Bytes
Packet Information
Database ID: 2237440
Mesh Packet ID: 0x9344be70
Used for correlation across gateways
Timestamp: 2025-06-29 09:52:23 UTC
From Node: Meshtastic 4a50 (4a50)
To Node: Sierra norte Madrid ⛰️ (SNM)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Hugo 📱🌡️ (HUGO)
Channel: LongFast
RSSI: -95 dBm
SNR: -19.75 dBm
Hop Info: 2/2 hops
Start: 2, Limit: 0
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic 4a50
Short Name:4a50
Node ID:!57ae4a50
MAC Address:yiFXrkpQ
Hardware:NRF52_PROMICRO_DIY
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:80 bytes
Gateway:!f1c9ead8
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 2
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 !f1c9ead8
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1471040080
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit Not set uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -95.0 dBm
Signal strength at gateway 		int32
rx_snr -19.75 dB
Signal quality at gateway 		float
rx_time 1751190746
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 144
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1751190743.0291934
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: !f1c9ead8
Signal Metrics: RSSI: -95.0 dBm
SNR: -19.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:80 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!57ae4a50", "long_name": "Meshtastic 4a50", "short_name": "4a50", "macaddr": "yiFXrkpQ", "hw_model": "NRF52_PROMICRO_DIY" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!f1c9ead8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1471040080, "to": 1129719940, "id": 2470755952, "rx_time": 1751190746, "rx_snr": -19.75, "rx_rssi": -95, "hop_limit": 0, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 144, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213537616534613530120f4d65736874617374696320346135301a04346135302206ca2157ae4a50283f38014220111d6c43dfce82d6b96d8bde1c72a12127d842159139d30e2f225493317f250b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!57ae4a50", "long_name": "Meshtastic 4a50", "short_name": "4a50", "macaddr": "yiFXrkpQ", "hw_model": "NRF52_PROMICRO_DIY", "role": "CLIENT_MUTE", "public_key": "ER1sQ9/Ogta5bYveHHKhISfYQhWROdMOLyJUkzF/JQs=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09213537616534613530120f4d65736874617374696320346135301a04346135302206ca2157ae4a50283f38014220111d6c43dfce82d6b96d8bde1c72a12127d842159139d30e2f225493317f250b
Hex Analysis:
Size:80 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
Hugo 📱🌡️ (HUGO) Primary 0.000s
Reference 		-95.0 dBm -19.75 dB 2 LongFast 2025-06-29 09:52:23 Current
Wake Up, Neo...📡 (NEO) -3.838s
Before 		-107.0 dBm -14.25 dB 1 LongFast 2025-06-29 09:52:19 View
Venturada2🗼🌐☀️ (Vb2) -2.195s
Before 		-111.0 dBm -9.50 dB 2 LongFast 2025-06-29 09:52:20 View
[Nevermore] Perseo 🗼 (nvm1) -1.996s
Before 		-91.0 dBm 4.00 dB 2 LongFast 2025-06-29 09:52:21 View
4

Total Receptions

4

Unique Gateways