Packet #438238

Database ID:	438238
Mesh Packet ID:	`0x461e7499` Utilizado para correlação entre gateways
Tempo:	2025-10-19 17:47:49 UTC
Do Node:	TVD0-GT-8 (TVD0)
Para o Node:	!b03d68ec (68ec)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	CR7BUK-CL-8 (7BUK)
Canal:	LongFast
RSSI:	-98 dBm
SNR:	1.75 dBm
Info Hop:	2/3 hops Início: 3, Limite: 1

Long Name:	TVD0-GT-8
Short Name:	TVD0
Node ID:	!4a308008
MAC Address:	JOxKMIAI
Hardware:	TLORA_T3_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:	76 bytes
Gateway:	!db2b2580
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 3

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`	`!db2b2580` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1244692488` Source node ID	uint32
`to`	`2956814572` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`76` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-98.0` dBm Signal strength at gateway	int32
`rx_snr`	`1.75` dB Signal quality at gateway	float
`rx_time`	`1760892273` 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`	`148` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760892469.7243733` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!db2b2580`
Signal Metrics:	RSSI: -98.0 dBm SNR: 1.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!4a308008", "long_name": "TVD0-GT-8", "short_name": "TVD0", "macaddr": "JOxKMIAI", "hw_model": "TLORA_T3_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!db2b2580", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1244692488, "to": 2956814572, "id": 1176401049, "rx_time": 1760892273, "rx_snr": 1.75, "rx_rssi": -98, "hop_limit": 1, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 148, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092134613330383030381209545644302d47542d381a0454564430220624ec4a3080082810380c4220106a78766e4cf733e98d68935e240d84ca0261658b59b2b934565b916d30fc424801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!4a308008", "long_name": "TVD0-GT-8", "short_name": "TVD0", "macaddr": "JOxKMIAI", "hw_model": "TLORA_T3_S3", "role": "CLIENT_BASE", "public_key": "EGp4dm5M9zPpjWiTXiQNhMoCYWWLWbK5NFZbkW0w/EI=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a092134613330383030381209545644302d47542d381a0454564430220624ec4a3080082810380c4220106a78766e4cf733e98d68935e240d84ca0261658b59b2b934565b916d30fc424801

Hex Analysis:

Size:	76 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 #438238 Successo

Informação de Pacotes

Conteúdo dados

Dados: