Pacote #105536 Successo

NODEINFO_APP packet from Meshtastic 97fc (97fc) to !ffffffff

2
Total Recepções
2
Gateways Únicos
0
Contagem de Hops
80
Conteúdo Bytes
Informação de Pacotes
Database ID: 105536
Mesh Packet ID: 0x8e1d06ed
Utilizado para correlação entre gateways
Tempo: 2025-09-30 21:23:37 UTC
Do Node: Meshtastic 97fc (97fc)
Para o Node: !ffffffff (ffff)
Successo: Processado
Protocolo: NODEINFO_APP
Port: 4
Gateway: PMR504🇵🇹_8 (72e8)
Canal: LongFast
RSSI: -26 dBm
SNR: 11.25 dBm
Info Hop: 0/4 hops
Início: 4, Limite: 4
Conteúdo dados
Protocol:o NODEINFO_APP
Tamanho: 80 bytes
Decoded: Sim
Dados:
Long Name:Meshtastic 97fc
Short Name:97fc
Node ID:!849a97fc
MAC Address:sIGEmpf8
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:80 bytes
Gateway:!cb4e72e8
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !cb4e72e8
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 2224723964
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -26.0 dBm
Signal strength at gateway 		int32
rx_snr 11.25 dB
Signal quality at gateway 		float
rx_time 3471826987
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 252
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759263817.7303813
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !cb4e72e8
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -26.0 dBm
SNR: 11.25 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": "!849a97fc", "long_name": "Meshtastic 97fc", "short_name": "97fc", "macaddr": "sIGEmpf8", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!cb4e72e8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2224723964, "to": 4294967295, "id": 2384266989, "rx_time": 3471826987, "rx_snr": 11.25, "rx_rssi": -26, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 252, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213834396139376663120f4d65736874617374696320393766631a04393766632206b081849a97fc282b4220905b33321e9d3f3ead52b589dc7d0f6990826529c5e93c6dad45a99733936d744800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!849a97fc", "long_name": "Meshtastic 97fc", "short_name": "97fc", "macaddr": "sIGEmpf8", "hw_model": "HELTEC_V3", "public_key": "kFszMh6dPz6tUrWJ3H0PaZCCZSnF6TxtrUWplzOTbXQ=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09213834396139376663120f4d65736874617374696320393766631a04393766632206b081849a97fc282b4220905b33321e9d3f3ead52b589dc7d0f6990826529c5e93c6dad45a99733936d744800
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
PMR504🇵🇹_8 (72e8) Primary 0.000s
Reference 		-26.0 dBm 11.25 dB 0 LongFast 2025-09-30 21:23:37 Current
Meshtastic 97fc (97fc) -57.402s
Before 		Unknown Unknown 0 LongFast 2025-09-30 21:22:40 View
2

Total Receptions

2

Unique Gateways