Packet #460618

Database ID:	460618
Mesh Packet ID:	`0x7747f767` Utilizado para correlação entre gateways
Tempo:	2025-10-21 03:52:08 UTC
Do Node:	FARO_Penha-RCC-GW-8 (PNHA)
Para o Node:	VacuumWorker-G-8 (Vcc4)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	FARO_Penha-RCC-GW-8 (PNHA)
Canal:	LongFast
RSSI:	Unknown
SNR:	Unknown
Info Hop:	0/2 hops Início: 2, Limite: 2

Long Name:	FARO_Penha-RCC-GW-8
Short Name:	PNHA
Node ID:	!c8fc170b
MAC Address:	7gTI/BcL
Hardware:	RAK4631

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:	84 bytes
Gateway:	!c8fc170b
Channel:	LongFast
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
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!c8fc170b` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (84 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3371964171` Source node ID	uint32
`to`	`2996809448` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`84` 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`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1761015127` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`70` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`11` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1761015128.2369463` 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

MQTT-Specific Fields

Gateway ID:	`!c8fc170b`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	84 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!c8fc170b", "long_name": "FARO_Penha-RCC-GW-8", "short_name": "PNHA", "macaddr": "7gTI/BcL", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!c8fc170b", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3371964171, "to": 2996809448, "id": 2001205095, "rx_time": 1761015127, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 11, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921633866633137306212134641524f5f50656e68612d5243432d47572d381a04504e48412206ee04c8fc170b28094220439119fa3b068f6c9151ca56559f66da5e656d6502fec378a8a7e785cd77a06a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!c8fc170b", "long_name": "FARO_Penha-RCC-GW-8", "short_name": "PNHA", "macaddr": "7gTI/BcL", "hw_model": "RAK4631", "public_key": "Q5EZ+jsGj2yRUcpWVZ9m2l5lbWUC/sN4qKfnhc13oGo=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (84 bytes)

0a0921633866633137306212134641524f5f50656e68612d5243432d47572d381a04504e48412206ee04c8fc170b28094220439119fa3b068f6c9151ca56559f66da5e656d6502fec378a8a7e785cd77a06a4800

Hex Analysis:

Size:	84 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 #460618 Successo

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