Packet #191016

Database ID:	191016
Mesh Packet ID:	`0x718baa6c` Utilizado para correlação entre gateways
Tempo:	2025-10-05 11:06:17 UTC
Do Node:	SULACO-8🇵🇹 (Λ²)
Para o Node:	!ffffffff (ffff)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	NOSTROMO-GW-8🇵🇹 (Λ¹)
Canal:	LongFast
RSSI:	-69 dBm
SNR:	7.0 dBm
Info Hop:	0/4 hops Início: 4, Limite: 4

Long Name:	SULACO-8🇵🇹
Short Name:	Λ²
Node ID:	!ea192748
MAC Address:	jL/qGSdI
Hardware:	T_DECK

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:	83 bytes
Gateway:	!da75d154
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!da75d154` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (83 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3927517000` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`83` 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`	`-69.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.00` dB Signal quality at gateway	float
`rx_time`	`1759658776` 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`	`72` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1759658777.3870552` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!da75d154`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -69.0 dBm SNR: 7.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	83 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ea192748", "long_name": "SULACO-8🇵🇹", "short_name": "Λ²", "macaddr": "jL/qGSdI", "hw_model": "T_DECK" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!da75d154", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3927517000, "to": 4294967295, "id": 1904978540, "rx_time": 1759658776, "rx_snr": 7.0, "rx_rssi": -69, "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": 72, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216561313932373438121053554c41434f2d38f09f87b5f09f87b91a04ce9bc2b222068cbfea192748283238014220ea578a0780fa5a8f997e15b7c11874e51d65d3e237b39574650774e70ec639634800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ea192748", "long_name": "SULACO-8🇵🇹", "short_name": "Λ²", "macaddr": "jL/qGSdI", "hw_model": "T_DECK", "role": "CLIENT_MUTE", "public_key": "6leKB4D6Wo+ZfhW3wRh05R1l0+I3s5V0ZQd05w7GOWM=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (83 bytes)

0a09216561313932373438121053554c41434f2d38f09f87b5f09f87b91a04ce9bc2b222068cbfea192748283238014220ea578a0780fa5a8f997e15b7c11874e51d65d3e237b39574650774e70ec639634800

Hex Analysis:

Size:	83 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 #191016 Successo

Informação de Pacotes

Conteúdo dados

Dados: