Packet #6070234

Database ID:	6070234
Mesh Packet ID:	`0xe2acf1e0` Used for correlation across gateways
Timestamp:	2026-01-15 19:27:52 UTC
From Node:	DN (DMNA)
To Node:	GNU/Linux (GNU)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Fostral (FSTR)
Channel:	LongFast
RSSI:	-83 dBm
SNR:	-16.25 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Long Name:	DN
Short Name:	DMNA
Node ID:	!02e5b3a4
MAC Address:	PA8C5bOk
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:	67 bytes
Gateway:	!1309d640
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	7 / 7

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`	`!1309d640` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (67 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`48608164` Source node ID	uint32
`to`	`1374230074` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`67` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-83.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.25` dB Signal quality at gateway	float
`rx_time`	`1768494472` 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`	`248` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1768494472.9083889` 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 (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!1309d640`
Signal Metrics:	RSSI: -83.0 dBm SNR: -16.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	67 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!02e5b3a4", "long_name": "DN", "short_name": "DMNA", "macaddr": "PA8C5bOk", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!1309d640", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 48608164, "to": 1374230074, "id": 3802984928, "rx_time": 1768494472, "rx_snr": -16.25, "rx_rssi": -83, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 248, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092130326535623361341202444e1a04444d4e4122063c0f02e5b3a4282b42204817c61ac9b47ae1e7302fb16235c4fd252f8032257bcf6d8cae60d415f28f794800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!02e5b3a4", "long_name": "DN", "short_name": "DMNA", "macaddr": "PA8C5bOk", "hw_model": "HELTEC_V3", "public_key": "SBfGGsm0euHnMC+xYjXE/SUvgDIle89tjK5g1BXyj3k=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (67 bytes)

0a092130326535623361341202444e1a04444d4e4122063c0f02e5b3a4282b42204817c61ac9b47ae1e7302fb16235c4fd252f8032257bcf6d8cae60d415f28f794800

Hex Analysis:

Size:	67 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 #6070234 Success

Packet Information

Payload Data

Decoded Data: