Packet #486351

Database ID:	486351
Mesh Packet ID:	`0x01df260a` Utilizado para correlação entre gateways
Tempo:	2025-10-22 13:22:26 UTC
Do Node:	TracerRound-CL-868 (TCRD)
Para o Node:	!ffffffff (ffff)
Successo:	Processado
Protocolo:	TELEMETRY_APP Port: 67

Gateway:	NPatroni-GW-8 (aba4)
Canal:	LongFast
RSSI:	-111 dBm
SNR:	-15.75 dBm
Info Hop:	1/4 hops Início: 4, Limite: 3

Temperatura:	25.5°C
Humidade:	65.4%

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:	17 bytes
Gateway:	!433daba4
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	1 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433daba4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (17 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1901159916` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`67` TELEMETRY_APP	enum
`decoded.payload_length`	`17` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-111.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1761135744` 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`	`56` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1761135746.1841202` 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

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433daba4`
Signal Metrics:	RSSI: -111.0 dBm SNR: -15.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	17 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1761135740, "environment_metrics": { "temperature": 25.5, "relative_humidity": 65.43 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433daba4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1901159916, "to": 4294967295, "id": 31401482, "rx_time": 1761135744, "rx_snr": -15.75, "rx_rssi": -111, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 56, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d7cccf8681a0a0d0000cc411529dc8242", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1761135740, "environment_metrics": { "temperature": 25.5, "relative_humidity": 65.43 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }

Raw Packet Data (17 bytes)

0d7cccf8681a0a0d0000cc411529dc8242

Hex Analysis:

Size:	17 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.

Gateway	Time Offset	RSSI	SNR	Hops	Channel	Timestamp	Actions
NPatroni-GW-8 (aba4) Primary	0.000s Reference	-111.0 dBm	-15.75 dB	1	LongFast	2025-10-22 13:22:26	Current
☣️JHR#1-CL-8 (JHR1)	+1.140s After	Unknown	Unknown	3	LongFast	2025-10-22 13:22:27	View
CBN-4-CL-868 (END4)	+1764.767s After	-111.0 dBm	-2.75 dB	3	LongFast	2025-10-22 13:51:50	View

Pacote #486351 Successo

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