Packet #370977

Database ID:	370977
Mesh Packet ID:	`0x0e0f90cd` Utilizado para correlação entre gateways
Tempo:	2025-10-15 21:37:38 UTC
Do Node:	Tomix1-cl-8 (Tmx1)
Para o Node:	!ffffffff (ffff)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	os5T-8j🇵🇹 (os5T)
Canal:	LongFast
RSSI:	-47 dBm
SNR:	9.5 dBm
Info Hop:	3/4 hops Início: 4, Limite: 1

Long Name:	Tomix1-cl-8
Short Name:	Tmx1
Node ID:	!da742474
MAC Address:	2DvadCR0
Hardware:	SEEED_XIAO_S3

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:	74 bytes
Gateway:	!8ec3a2d8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 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`	`!8ec3a2d8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3665044596` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-47.0` dBm Signal strength at gateway	int32
`rx_snr`	`9.50` dB Signal quality at gateway	float
`rx_time`	`1760559217` 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`	`160` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760560658.7341223` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!8ec3a2d8`
Signal Metrics:	RSSI: -47.0 dBm SNR: 9.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!da742474", "long_name": "Tomix1-cl-8", "short_name": "Tmx1", "macaddr": "2DvadCR0", "hw_model": "SEEED_XIAO_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!8ec3a2d8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3665044596, "to": 4294967295, "id": 235901133, "rx_time": 1760559217, "rx_snr": 9.5, "rx_rssi": -47, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 160, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216461373432343734120b546f6d6978312d636c2d381a04546d78312206d83bda7424742851422083418b26a83fd3c9c8544dfb8143aac3646662967b14395a046fdf8b7a3ce266", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!da742474", "long_name": "Tomix1-cl-8", "short_name": "Tmx1", "macaddr": "2DvadCR0", "hw_model": "SEEED_XIAO_S3", "public_key": "g0GLJqg/08nIVE37gUOqw2RmYpZ7FDlaBG/fi3o84mY=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a09216461373432343734120b546f6d6978312d636c2d381a04546d78312206d83bda7424742851422083418b26a83fd3c9c8544dfb8143aac3646662967b14395a046fdf8b7a3ce266

Hex Analysis:

Size:	74 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 #370977 Successo

Informação de Pacotes

Conteúdo dados

Dados: