Packet #458100

Database ID:	458100
Mesh Packet ID:	`0xdfab4fed` Utilizado para correlação entre gateways
Tempo:	2025-10-21 00:04:49 UTC
Do Node:	PaloAlto (Alto)
Para o Node:	!ffffffff (ffff)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	oasis11-5📌-8🇫🇮 (DRU5)
Canal:	LongFast
RSSI:	-109 dBm
SNR:	-12.5 dBm
Info Hop:	4/4 hops Início: 4, Limite: 0

Long Name:	PaloAlto
Short Name:	Alto
Node ID:	!00d7af74
MAC Address:	jE8A1690
Hardware:	HELTEC_V2_0

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:	73 bytes
Gateway:	!c47ba8fc
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	4 / 4

Privacy Summary

Exposure Level:
Broadcast

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

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!c47ba8fc` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (73 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`14135156` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`73` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-109.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.50` dB Signal quality at gateway	float
`rx_time`	`1761001488` 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`	`39` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1761001489.1668496` 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

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!c47ba8fc`
Signal Metrics:	RSSI: -109.0 dBm SNR: -12.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	73 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!00d7af74", "long_name": "PaloAlto", "short_name": "Alto", "macaddr": "jE8A1690", "hw_model": "HELTEC_V2_0" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!c47ba8fc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 14135156, "to": 4294967295, "id": 3752546285, "rx_time": 1761001488, "rx_snr": -12.5, "rx_rssi": -109, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 39, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213030643761663734120850616c6f416c746f1a04416c746f22068c4f00d7af7428054220d47da79766fecda3fb844ffd59ff0de538ab20e2612416f9582ebe619a098b0a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!00d7af74", "long_name": "PaloAlto", "short_name": "Alto", "macaddr": "jE8A1690", "hw_model": "HELTEC_V2_0", "public_key": "1H2nl2b+zaP7hE/9Wf8N5TirIOJhJBb5WC6+YZoJiwo=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (73 bytes)

0a09213030643761663734120850616c6f416c746f1a04416c746f22068c4f00d7af7428054220d47da79766fecda3fb844ffd59ff0de538ab20e2612416f9582ebe619a098b0a4800

Hex Analysis:

Size:	73 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 #458100 Successo

Informação de Pacotes

Conteúdo dados

Dados: