Packet #425889

Database ID:	425889
Mesh Packet ID:	`0x0617d9f9` Utilizado para correlação entre gateways
Tempo:	2025-10-19 05:03:28 UTC
Do Node:	radio makers 868DUR 00_CL 📡🛠️ (RAL0)
Para o Node:	!ba0c7660 (7660)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	Xichas-SMFeira-GW-8 🏰 (XIGW)
Canal:	LongFast
RSSI:	-120 dBm
SNR:	-17.5 dBm
Info Hop:	2/2 hops Início: 2, Limite: 0

Long Name:	radio makers 868DUR 00_CL 📡🛠️
Short Name:	RAL0
Node ID:	!9ee77e2c
MAC Address:	nBOe534s
Hardware:	HELTEC_V3

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:	102 bytes
Gateway:	!a0ca42e0
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 2

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`	`!a0ca42e0` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (102 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2665971244` Source node ID	uint32
`to`	`3121378912` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`102` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-120.0` dBm Signal strength at gateway	int32
`rx_snr`	`-17.50` dB Signal quality at gateway	float
`rx_time`	`1760846606` 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`	`146` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760846608.5174584` 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:	`!a0ca42e0`
Signal Metrics:	RSSI: -120.0 dBm SNR: -17.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	102 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!9ee77e2c", "long_name": "radio makers 868DUR 00_CL 📡🛠️", "short_name": "RAL0", "macaddr": "nBOe534s", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a0ca42e0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2665971244, "to": 3121378912, "id": 102226425, "rx_time": 1760846606, "rx_snr": -17.5, "rx_rssi": -120, "hop_limit": 0, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 146, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092139656537376532631225726164696f206d616b657273203836384455522030305f434c20f09f93a1f09f9ba0efb88f1a0452414c3022069c139ee77e2c282b4220f63fd76c07cc874e1472ffbdd4f1e579a79ea05aadcee1a453656bd25bf2dc4e4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9ee77e2c", "long_name": "radio makers 868DUR 00_CL 📡🛠️", "short_name": "RAL0", "macaddr": "nBOe534s", "hw_model": "HELTEC_V3", "public_key": "9j/XbAfMh04Ucv+91PHleaeeoFqtzuGkU2Vr0lvy3E4=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (102 bytes)

0a092139656537376532631225726164696f206d616b657273203836384455522030305f434c20f09f93a1f09f9ba0efb88f1a0452414c3022069c139ee77e2c282b4220f63fd76c07cc874e1472ffbdd4f1e579a79ea05aadcee1a453656bd25bf2dc4e4801

Hex Analysis:

Size:	102 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 #425889 Successo

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