Pacote #439346 Successo

NODEINFO_APP packet from Meshtastic 1528 (1528) to PortoAlegria-C-8 (Frnd)

4
Total Recepções
4
Gateways Únicos
2
Contagem de Hops
82
Conteúdo Bytes
Informação de Pacotes
Database ID: 439346
Mesh Packet ID: 0x1e0ee3f7
Utilizado para correlação entre gateways
Tempo: 2025-10-19 19:05:56 UTC
Do Node: Meshtastic 1528 (1528)
Para o Node: PortoAlegria-C-8 (Frnd)
Successo: Processado
Protocolo: NODEINFO_APP
Port: 4
Gateway: Fama17-GT-8-PT (F17)
Canal: LongFast
RSSI: -122 dBm
SNR: -12.75 dBm
Info Hop: 2/4 hops
Início: 4, Limite: 2
Conteúdo dados
Protocol:o NODEINFO_APP
Tamanho: 82 bytes
Decoded: Sim
Dados:
Long Name:Meshtastic 1528
Short Name:1528
Node ID:!db2f1528
MAC Address:EFHbLxUo
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:82 bytes
Gateway:!13296f2c
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 4
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 !13296f2c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (82 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3677295912
Source node ID 		uint32
to 3677051276
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 82 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -122.0 dBm
Signal strength at gateway 		int32
rx_snr -12.75 dB
Signal quality at gateway 		float
rx_time 1760897154
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 173
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1760897156.8304353
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: !13296f2c
Signal Metrics: RSSI: -122.0 dBm
SNR: -12.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:82 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!db2f1528", "long_name": "Meshtastic 1528", "short_name": "1528", "macaddr": "EFHbLxUo", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!13296f2c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677295912, "to": 3677051276, "id": 504292343, "rx_time": 1760897154, "rx_snr": -12.75, "rx_rssi": -122, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 173, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216462326631353238120f4d65736874617374696320313532381a043135323822061051db2f1528282b38014220995e22409ed5dbcda3aba63baf1be8057dfee1704b268f2d949394b7d428a60b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!db2f1528", "long_name": "Meshtastic 1528", "short_name": "1528", "macaddr": "EFHbLxUo", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "mV4iQJ7V282jq6Y7rxvoBX3+4XBLJo8tlJOUt9Qopgs=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (82 bytes)
0a09216462326631353238120f4d65736874617374696320313532381a043135323822061051db2f1528282b38014220995e22409ed5dbcda3aba63baf1be8057dfee1704b268f2d949394b7d428a60b4800
Hex Analysis:
Size:82 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
Fama17-GT-8-PT (F17) Primary 0.000s
Reference 		-122.0 dBm -12.75 dB 2 LongFast 2025-10-19 19:05:56 Current
Cabanelas-CL-8 (CAB1) -1.642s
Before 		-133.0 dBm -10.00 dB 2 LongFast 2025-10-19 19:05:55 View
MosEisleyCantina-GW-8🇵🇹 (SOLO) -1.464s
Before 		-114.0 dBm -16.75 dB 2 LongFast 2025-10-19 19:05:55 View
ℹ️(Meshtastic.pt)-GW-868🇵🇹 (BIG4) +931.389s
After 		-125.0 dBm -12.50 dB 4 LongFast 2025-10-19 19:21:28 View
4

Total Receptions

4

Unique Gateways