Packet #13963356 Success

NODEINFO_APP packet from Meshtastic 2f27 (2f27) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

15
Total Receptions
15
Unique Gateways
0
Hop Count
80
Payload Bytes
Packet Information
Database ID: 13963356
Mesh Packet ID: 0x635b5a06
Used for correlation across gateways
Timestamp: 2025-10-07 06:21:38 UTC
From Node: Meshtastic 2f27 (2f27)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Venturada2🗼🌐☀️ (Vb2)
Channel: MediumSlow
RSSI: -72 dBm
SNR: 8.5 dBm
Hop Info: 0/2 hops
Start: 2, Limit: 2
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic 2f27
Short Name:2f27
Node ID:!23032f27
MAC Address:3eojAy8n
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:!a03526b0
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a03526b0
Node ID format
channel_id MediumSlow
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 587411239
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -72.0 dBm
Signal strength at gateway 		int32
rx_snr 8.50 dB
Signal quality at gateway 		float
rx_time 1759818097
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 39
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759818098.059836
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: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a03526b0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -72.0 dBm
SNR: 8.50 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": "!23032f27", "long_name": "Meshtastic 2f27", "short_name": "2f27", "macaddr": "3eojAy8n", "hw_model": "NRF52_PROMICRO_DIY" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a03526b0", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 587411239, "to": 1129719940, "id": 1666931206, "rx_time": 1759818097, "rx_snr": 8.5, "rx_rssi": -72, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 39, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213233303332663237120f4d65736874617374696320326632371a04326632372206ddea23032f27283f42200a9aa9c92c1c9b4061c243a115bc36a1e85ded776afe2967fc58c53edcaa25004800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!23032f27", "long_name": "Meshtastic 2f27", "short_name": "2f27", "macaddr": "3eojAy8n", "hw_model": "NRF52_PROMICRO_DIY", "public_key": "CpqpySwcm0BhwkOhFbw2oehd7Xdq/iln/FjFPtyqJQA=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09213233303332663237120f4d65736874617374696320326632371a04326632372206ddea23032f27283f42200a9aa9c92c1c9b4061c243a115bc36a1e85ded776afe2967fc58c53edcaa25004800
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
Venturada2🗼🌐☀️ (Vb2) Primary 0.000s
Reference 		-72.0 dBm 8.50 dB 0 MediumSlow 2025-10-07 06:21:38 Current
Oxygen EA4HKU (O) +0.817s
After 		-114.0 dBm -9.00 dB 1 MediumSlow 2025-10-07 06:21:38 View
Carbon EA4HKU (C) +1.041s
After 		-110.0 dBm Unknown 1 MediumSlow 2025-10-07 06:21:39 View
Meshtastic 1760 (1760) +1.131s
After 		-117.0 dBm -2.00 dB 1 MediumSlow 2025-10-07 06:21:39 View
Meshtastic 18a4 (18a4) +1.141s
After 		-122.0 dBm -11.75 dB 1 MediumSlow 2025-10-07 06:21:39 View
Suop 📡 🌐 (SUOP) +1.155s
After 		-113.0 dBm -7.75 dB 1 MediumSlow 2025-10-07 06:21:39 View
Ocumare_Base_🗼🌐 (CATA) +4.044s
After 		-81.0 dBm 7.75 dB 2 MediumSlow 2025-10-07 06:21:42 View
GRN1-Base🗼🌐 (GRN1) +5.671s
After 		-95.0 dBm 1.50 dB 1 MediumSlow 2025-10-07 06:21:43 View
TO_Cala_Base2🗼🌐☀️ (33C8) +7.475s
After 		-123.0 dBm -16.25 dB 2 MediumSlow 2025-10-07 06:21:45 View
Mec Rocket Meco (MRM) +7.706s
After 		-108.0 dBm -6.75 dB 2 MediumSlow 2025-10-07 06:21:45 View
[TLG] 📡🌐🔋🔌 (tlg0) +7.955s
After 		-88.0 dBm 6.50 dB 2 MediumSlow 2025-10-07 06:21:46 View
Rodashtastic🗼🌐 (RDSt) +12.481s
After 		-116.0 dBm -15.50 dB 2 MediumSlow 2025-10-07 06:21:50 View
Quass002 ☄️ (Q002) +14.824s
After 		-125.0 dBm -15.50 dB 2 MediumSlow 2025-10-07 06:21:52 View
Baldur Fijo (BalF) +49.718s
After 		-106.0 dBm -1.50 dB 2 MediumSlow 2025-10-07 06:22:27 View
tizon (Sylv) +49.727s
After 		-127.0 dBm -17.00 dB 2 MediumSlow 2025-10-07 06:22:27 View
15

Total Receptions

15

Unique Gateways