Packet #442808

Database ID:	442808
Mesh Packet ID:	`0x8cc973de` Utilizado para correlação entre gateways
Tempo:	2025-10-20 00:44:51 UTC
Do Node:	RH3XF5-CL-833 (R5XF)
Para o Node:	!b03d68ec (68ec)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	☣️JHR#1-CL-8 (JHR1)
Canal:	LongFast
RSSI:	-109 dBm
SNR:	1.5 dBm
Info Hop:	3/3 hops Início: 3, Limite: 0

Long Name:	RH3XF5-CL-833
Short Name:	R5XF
Node ID:	!433cc91c
MAC Address:	SMpDPMkc
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:	78 bytes
Gateway:	!b03de76c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

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

Field	Value
`gateway_id`	`!b03de76c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (78 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128057116` Source node ID	uint32
`to`	`2956814572` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`78` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-109.0` dBm Signal strength at gateway	int32
`rx_snr`	`1.50` dB Signal quality at gateway	float
`rx_time`	`1760917491` 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`	`175` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760917491.850772` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b03de76c`
Signal Metrics:	RSSI: -109.0 dBm SNR: 1.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	78 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433cc91c", "long_name": "RH3XF5-CL-833", "short_name": "R5XF", "macaddr": "SMpDPMkc", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b03de76c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128057116, "to": 2956814572, "id": 2362012638, "rx_time": 1760917491, "rx_snr": 1.5, "rx_rssi": -109, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 175, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433336363393163120d5248335846352d434c2d3833331a0452355846220648ca433cc91c282b422049861827d1c98fb91e58ff18304c87ab1651f97768290a7376a059f7089866744800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433cc91c", "long_name": "RH3XF5-CL-833", "short_name": "R5XF", "macaddr": "SMpDPMkc", "hw_model": "HELTEC_V3", "public_key": "SYYYJ9HJj7keWP8YMEyHqxZR+XdoKQpzdqBZ9wiYZnQ=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (78 bytes)

0a09213433336363393163120d5248335846352d434c2d3833331a0452355846220648ca433cc91c282b422049861827d1c98fb91e58ff18304c87ab1651f97768290a7376a059f7089866744800

Hex Analysis:

Size:	78 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 #442808 Successo

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