Packet #707664

Database ID:	707664
Mesh Packet ID:	`0x8c11c5e2` Utilizado para correlação entre gateways
Tempo:	2025-11-03 15:27:22 UTC
Do Node:	LLF1_Lomo.ls.Frailes🗼0e04 (LLF1)
Para o Node:	!889a87f1 (87f1)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	StaCruz-GW-8 🇵🇹 (STAC)
Canal:	LongFast
RSSI:	-45 dBm
SNR:	6.25 dBm
Info Hop:	2/4 hops Início: 4, Limite: 2

Long Name:	LLF1_Lomo.ls.Frailes🗼0e04
Short Name:	LLF1
Node ID:	!9ea20e04
MAC Address:	nBOeog4E
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:	93 bytes
Gateway:	!fa6711d4
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 4

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`	`!fa6711d4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (93 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2661420548` Source node ID	uint32
`to`	`2291828721` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`93` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-45.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.25` dB Signal quality at gateway	float
`rx_time`	`1762183640` 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`	`181` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1762183642.4945393` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!fa6711d4`
Signal Metrics:	RSSI: -45.0 dBm SNR: 6.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	93 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!9ea20e04", "long_name": "LLF1_Lomo.ls.Frailes🗼0e04", "short_name": "LLF1", "macaddr": "nBOeog4E", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!fa6711d4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661420548, "to": 2291828721, "id": 2349975010, "rx_time": 1762183640, "rx_snr": 6.25, "rx_rssi": -45, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 181, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213965613230653034121c4c4c46315f4c6f6d6f2e6c732e467261696c6573f09f97bc306530341a044c4c463122069c139ea20e04282b4220e6865fc05fda81a2c1052b4c386c844081218f588198476e658dd066d54fb7014800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9ea20e04", "long_name": "LLF1_Lomo.ls.Frailes🗼0e04", "short_name": "LLF1", "macaddr": "nBOeog4E", "hw_model": "HELTEC_V3", "public_key": "5oZfwF/agaLBBStMOGyEQIEhj1iBmEduZY3QZtVPtwE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (93 bytes)

0a09213965613230653034121c4c4c46315f4c6f6d6f2e6c732e467261696c6573f09f97bc306530341a044c4c463122069c139ea20e04282b4220e6865fc05fda81a2c1052b4c386c844081218f588198476e658dd066d54fb7014800

Hex Analysis:

Size:	93 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 #707664 Successo

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