Packet #514385

Database ID:	514385
Mesh Packet ID:	`0x6e539c71` Used for correlation across gateways
Timestamp:	2026-03-01 18:53:56 UTC
From Node:	MAGMQTT (MAG-)
To Node:	Meshtastic 4094 (4094)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Deka Mobile (DM)
Channel:	LongFast
RSSI:	-45 dBm
SNR:	10.0 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2
Relay Node:	`ae` DMDD Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	MAGMQTT
Short Name:	MAG-
Node ID:	!336a2a50
MAC Address:	ZOgzaipQ
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:	74 bytes
Gateway:	!8c27a75e
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 3

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`	`!8c27a75e` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`862595664` Source node ID	uint32
`to`	`1771782292` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-45.0` dBm Signal strength at gateway	int32
`rx_snr`	`10.00` dB Signal quality at gateway	float
`rx_time`	`1772391237` 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`	`174` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1772391236.3542433` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!8c27a75e`
Signal Metrics:	RSSI: -45.0 dBm SNR: 10.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!336a2a50", "long_name": "MAGMQTT", "short_name": "MAG-", "macaddr": "ZOgzaipQ", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!8c27a75e", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862595664, "to": 1771782292, "id": 1850973297, "rx_time": 1772391237, "rx_snr": 10.0, "rx_rssi": -45, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 174, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921333336613261353012074d41474d5154541a044d41472d220664e8336a2a50282b380142208f93dd4b39f1a3a9d283ece8fcd6b3e81fb229c75e983fb2ba2eee1a7a1b95424800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!336a2a50", "long_name": "MAGMQTT", "short_name": "MAG-", "macaddr": "ZOgzaipQ", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "j5PdSznxo6nSg+zo/Naz6B+yKcdemD+yui7uGnoblUI=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a0921333336613261353012074d41474d5154541a044d41472d220664e8336a2a50282b380142208f93dd4b39f1a3a9d283ece8fcd6b3e81fb229c75e983fb2ba2eee1a7a1b95424800

Hex Analysis:

Size:	74 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 #514385 Success

Packet Information

Payload Data

Decoded Data: