Packet #169983

Database ID:	169983
Mesh Packet ID:	`0x97554cef` Used for correlation across gateways
Timestamp:	2025-09-09 20:08:03 UTC
From Node:	WSLv3-7 🚧 (WSL7)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Vladimirovo G 🇧🇬🏡🛰️ (VLG1)
Channel:	Bulgaria
RSSI:	-49 dBm
SNR:	13.25 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2

Long Name:	WSLv3-7 🚧
Short Name:	WSL7
Node ID:	!433dec60
MAC Address:	SMpDPexg
Hardware:	HELTEC_WSL_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:	77 bytes
Gateway:	!7d542fb4
Channel:	Bulgaria
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 2

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Bulgaria
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!7d542fb4` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (77 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128131680` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	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`	`-49.0` dBm Signal strength at gateway	int32
`rx_snr`	`13.25` dB Signal quality at gateway	float
`rx_time`	`1757437682` 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`	`96` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757437683.315884` 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)
✓ Custom channel: Bulgaria
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!7d542fb4`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -49.0 dBm SNR: 13.25 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": "!433dec60", "long_name": "WSLv3-7 🚧", "short_name": "WSL7", "macaddr": "SMpDPexg", "hw_model": "HELTEC_WSL_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!7d542fb4", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128131680, "to": 4294967295, "id": 2538949871, "rx_time": 1757437682, "rx_snr": 13.25, "rx_rssi": -49, "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": 96, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433336465633630120c57534c76332d3720f09f9aa71a0457534c37220648ca433dec60282c42205000e33fa31defc08f355404560701181179c11c2f82081945a6025f52bb91434800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433dec60", "long_name": "WSLv3-7 🚧", "short_name": "WSL7", "macaddr": "SMpDPexg", "hw_model": "HELTEC_WSL_V3", "public_key": "UADjP6Md78CPNVQEVgcBGBF5wRwvgggZRaYCX1K7kUM=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (77 bytes)

0a09213433336465633630120c57534c76332d3720f09f9aa71a0457534c37220648ca433dec60282c42205000e33fa31defc08f355404560701181179c11c2f82081945a6025f52bb91434800

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 #169983 Success

Packet Information

Payload Data

Decoded Data: