Packet #128072

Database ID:	128072
Mesh Packet ID:	`0x7b0173dc` Utilizado para correlação entre gateways
Tempo:	2025-10-01 23:59:53 UTC
Do Node:	Duque-Aralho-CL-8 (DUKE)
Para o Node:	!6c981778 (1778)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	CT1ERW-CL-8 (ERW)
Canal:	LongFast
RSSI:	-128 dBm
SNR:	-18.25 dBm
Info Hop:	1/5 hops Início: 5, Limite: 4

Long Name:	Duque-Aralho-CL-8
Short Name:	DUKE
Node ID:	!c42082b2
MAC Address:	/WHEIIKy
Hardware:	TRACKER_T1000_E

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:	!a0cab4ac
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 5

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`	`!a0cab4ac` 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`	`3290464946` Source node ID	uint32
`to`	`1821906808` 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`	`5` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-128.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.25` dB Signal quality at gateway	float
`rx_time`	`1759359592` 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`	`176` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1759359593.6494164` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a0cab4ac`
Signal Metrics:	RSSI: -128.0 dBm SNR: -18.25 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": "!c42082b2", "long_name": "Duque-Aralho-CL-8", "short_name": "DUKE", "macaddr": "/WHEIIKy", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a0cab4ac", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3290464946, "to": 1821906808, "id": 2063692764, "rx_time": 1759359592, "rx_snr": -18.25, "rx_rssi": -128, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216334323038326232121144757175652d4172616c686f2d434c2d381a0444554b452206fd61c42082b2284742204b130150d2c26f5e08427d3520a2fb392f8cc0f83678fea994a90560f1ca037b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!c42082b2", "long_name": "Duque-Aralho-CL-8", "short_name": "DUKE", "macaddr": "/WHEIIKy", "hw_model": "TRACKER_T1000_E", "public_key": "SxMBUNLCb14IQn01IKL7OS+MwPg2eP6plKkFYPHKA3s=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (82 bytes)

0a09216334323038326232121144757175652d4172616c686f2d434c2d381a0444554b452206fd61c42082b2284742204b130150d2c26f5e08427d3520a2fb392f8cc0f83678fea994a90560f1ca037b4800

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 #128072 Successo

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