Packet #9239103

Database ID:	9239103
Mesh Packet ID:	`0x9e95980f` Used for correlation across gateways
Timestamp:	2025-09-05 05:59:23 UTC
From Node:	SOLAR RINCHI (SPK3)
To Node:	Sinovial (Snvl)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Sinobas (Snbs)
Channel:	LongFast
RSSI:	-93 dBm
SNR:	5.0 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2

Long Name:	SOLAR RINCHI
Short Name:	SPK3
Node ID:	!0a9047f5
MAC Address:	7D4KkEf1
Hardware:	NRF52_PROMICRO_DIY

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:	77 bytes
Gateway:	!b0135e6f
Channel:	LongFast
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
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b0135e6f` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (77 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`177227765` Source node ID	uint32
`to`	`3342943987` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`77` 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`	`-93.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.00` dB Signal quality at gateway	float
`rx_time`	`1757050175` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757051963.4662213` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b0135e6f`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -93.0 dBm SNR: 5.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	77 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!0a9047f5", "long_name": "SOLAR RINCHI", "short_name": "SPK3", "macaddr": "7D4KkEf1", "hw_model": "NRF52_PROMICRO_DIY" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b0135e6f", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 177227765, "to": 3342943987, "id": 2660603919, "rx_time": 1757050175, "rx_snr": 5.0, "rx_rssi": -93, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213061393034376635120c534f4c41522052494e4348491a0453504b332206ec3e0a9047f5283f4220be1b9f07caa48e16a4af813a4cad5d7bd5b89d2e82efd5c645f6acdb47d90d0c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!0a9047f5", "long_name": "SOLAR RINCHI", "short_name": "SPK3", "macaddr": "7D4KkEf1", "hw_model": "NRF52_PROMICRO_DIY", "public_key": "vhufB8qkjhakr4E6TK1de9W4nS6C79XGRfas20fZDQw=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (77 bytes)

0a09213061393034376635120c534f4c41522052494e4348491a0453504b332206ec3e0a9047f5283f4220be1b9f07caa48e16a4af813a4cad5d7bd5b89d2e82efd5c645f6acdb47d90d0c4800

Hex Analysis:

Size:	77 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 #9239103 Success

Packet Information

Payload Data

Decoded Data: