Packet #627449

Database ID:	627449
Mesh Packet ID:	`0xd34a024b` Utilizado para correlação entre gateways
Tempo:	2025-10-30 13:26:45 UTC
Do Node:	SOLAR-NODE-RL-8 (R001)
Para o Node:	!b03d68ec (68ec)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	GZ7d0-8 (GZ7D)
Canal:	LongFast
RSSI:	-100 dBm
SNR:	-18.0 dBm
Info Hop:	0/4 hops Início: 4, Limite: 4

Long Name:	SOLAR-NODE-RL-8
Short Name:	R001
Node ID:	!55db7e38
MAC Address:	xhJV2344
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:	82 bytes
Gateway:	!aaf1d328
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 4

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`	`!aaf1d328` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (82 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1440448056` Source node ID	uint32
`to`	`2956814572` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`82` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-100.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.00` dB Signal quality at gateway	float
`rx_time`	`1761830806` 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`	`1761830805.2069354` 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:	`!aaf1d328`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -100.0 dBm SNR: -18.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	82 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!55db7e38", "long_name": "SOLAR-NODE-RL-8", "short_name": "R001", "macaddr": "xhJV2344", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!aaf1d328", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1440448056, "to": 2956814572, "id": 3544842827, "rx_time": 1761830806, "rx_snr": -18.0, "rx_rssi": -100, "hop_limit": 4, "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": 4, "payload": "0a09213535646237653338120f534f4c41522d4e4f44452d524c2d381a04523030312206c61255db7e382809380b422028e53bae9530f7097cf1e2691efea61f0c85f1834f7be8d097ecf2347f1e50454801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!55db7e38", "long_name": "SOLAR-NODE-RL-8", "short_name": "R001", "macaddr": "xhJV2344", "hw_model": "RAK4631", "role": "ROUTER_LATE", "public_key": "KOU7rpUw9wl88eJpHv6mHwyF8YNPe+jQl+zyNH8eUEU=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (82 bytes)

0a09213535646237653338120f534f4c41522d4e4f44452d524c2d381a04523030312206c61255db7e382809380b422028e53bae9530f7097cf1e2691efea61f0c85f1834f7be8d097ecf2347f1e50454801

Hex Analysis:

Size:	82 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 #627449 Successo

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