Packet #3864872

Database ID:	3864872
Mesh Packet ID:	`0x5a9fe86b` Used for correlation across gateways
Timestamp:	2025-07-16 08:22:18 UTC
From Node:	www.labibliotecaambulante.com (€)
To Node:	Angel (🏠)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	www.labibliotecaambulante.com (€)
Channel:	Iberia
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/2 hops Start: 2, Limit: 2

Long Name:	www.labibliotecaambulante.com
Short Name:	€
Node ID:	!ba6a6048
MAC Address:	ECC6amBI
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:	93 bytes
Gateway:	!ba6a6048
Channel:	Iberia
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!ba6a6048` Node ID format
`channel_id`	`Iberia`
`packet`	`MeshPacket` (93 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3127533640` Source node ID	uint32
`to`	`3677332948` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`93` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1752654136` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`70` Packet priority level	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`	`1752654138.8820543` 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
✓ Custom channel: Iberia
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!ba6a6048`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	93 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ba6a6048", "long_name": "www.labibliotecaambulante.com", "short_name": "€", "macaddr": "ECC6amBI", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ba6a6048", "channel_id": "Iberia", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3127533640, "to": 3677332948, "id": 1520429163, "rx_time": 1752654136, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 72, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216261366136303438121d7777772e6c616269626c696f74656361616d62756c616e74652e636f6d1a03e282ac22061020ba6a6048282b42206b9db5ded55cceb2dcd319e660f0aec1164d5a862b52d7460be025d162a30b0a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ba6a6048", "long_name": "www.labibliotecaambulante.com", "short_name": "€", "macaddr": "ECC6amBI", "hw_model": "HELTEC_V3", "public_key": "a5213tVczrLc0xnmYPCuwRZNWoYrUtdGC+Al0WKjCwo=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (93 bytes)

0a09216261366136303438121d7777772e6c616269626c696f74656361616d62756c616e74652e636f6d1a03e282ac22061020ba6a6048282b42206b9db5ded55cceb2dcd319e660f0aec1164d5a862b52d7460be025d162a30b0a4800

Hex Analysis:

Size:	93 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.

Packet #3864872 Success

Packet Information

Payload Data

Decoded Data: