Packet #338405

Database ID:	338405
Mesh Packet ID:	`0x2c029d6e` Utilizado para correlação entre gateways
Tempo:	2025-10-14 03:56:46 UTC
Do Node:	VisaoNocturna (VsNc)
Para o Node:	Pigsy-8 (PN-8)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	VRVF-PLM-CL-868🇵🇹 (VRVF)
Canal:	LongFast
RSSI:	-138 dBm
SNR:	-15.0 dBm
Info Hop:	0/3 hops Início: 3, Limite: 3

Long Name:	VisaoNocturna
Short Name:	VsNc
Node ID:	!433dac54
MAC Address:	SMpDPaxU
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:	76 bytes
Gateway:	!2f9f7808
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!2f9f7808` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128115284` Source node ID	uint32
`to`	`2997321420` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`76` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-138.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.00` dB Signal quality at gateway	float
`rx_time`	`1760410603` 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`	`84` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760410606.0438838` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!2f9f7808`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -138.0 dBm SNR: -15.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433dac54", "long_name": "VisaoNocturna", "short_name": "VsNc", "macaddr": "SMpDPaxU", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!2f9f7808", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128115284, "to": 2997321420, "id": 738368878, "rx_time": 1760410603, "rx_snr": -15.0, "rx_rssi": -138, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 84, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433336461633534120d566973616f4e6f637475726e611a0456734e63220648ca433dac54282b4220b9cb6f12bf4e46bf44fe007d236e91960c8e9af67fe4baab65cd08f7ab79e13b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433dac54", "long_name": "VisaoNocturna", "short_name": "VsNc", "macaddr": "SMpDPaxU", "hw_model": "HELTEC_V3", "public_key": "uctvEr9ORr9E/gB9I26RlgyOmvZ/5LqrZc0I96t54Ts=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a09213433336461633534120d566973616f4e6f637475726e611a0456734e63220648ca433dac54282b4220b9cb6f12bf4e46bf44fe007d236e91960c8e9af67fe4baab65cd08f7ab79e13b

Hex Analysis:

Size:	76 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.

Pacote #338405 Successo

Informação de Pacotes

Conteúdo dados

Dados: