Packet #1473797

Database ID:	1473797
Mesh Packet ID:	`0xf35f135d` Used for correlation across gateways
Timestamp:	2026-05-30 08:14:44 UTC
From Node:	Alexey_C2 (AlC2)
To Node:	Alex_Nikit@04 [solnechnyi] (AN04)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Alexey_H_Base (AlHB)
Channel:	LongFast
RSSI:	-105 dBm
SNR:	6.75 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3

Long Name:	Alexey_C2
Short Name:	AlC2
Node ID:	!c19ccccc
MAC Address:	6D3BnMzM
Hardware:	PRIVATE_HW

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:	75 bytes
Gateway:	!f5f7b1dc
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

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`	`!f5f7b1dc` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3248278732` Source node ID	uint32
`to`	`1307393036` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-105.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.75` dB Signal quality at gateway	float
`rx_time`	`1780114488` 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`	`204` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1780114484.1269877` 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:	`!f5f7b1dc`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -105.0 dBm SNR: 6.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!c19ccccc", "long_name": "Alexey_C2", "short_name": "AlC2", "macaddr": "6D3BnMzM", "hw_model": "PRIVATE_HW" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!f5f7b1dc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3248278732, "to": 1307393036, "id": 4083094365, "rx_time": 1780114488, "rx_snr": 6.75, "rx_rssi": -105, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 204, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092163313963636363631209416c657865795f43321a04416c43322206e83dc19ccccc28ff0142203bfeb6d4bad4d8d151eb5591b2ebee16636ab9fb371b70763ccf73ae0b5ed8344800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!c19ccccc", "long_name": "Alexey_C2", "short_name": "AlC2", "macaddr": "6D3BnMzM", "hw_model": "PRIVATE_HW", "public_key": "O/621LrU2NFR61WRsuvuFmNqufs3G3B2PM9zrgte2DQ=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a092163313963636363631209416c657865795f43321a04416c43322206e83dc19ccccc28ff0142203bfeb6d4bad4d8d151eb5591b2ebee16636ab9fb371b70763ccf73ae0b5ed8344800

Hex Analysis:

Size:	75 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 #1473797 Success

Packet Information

Payload Data

Decoded Data: