Packet #3068095

Database ID:	3068095
Mesh Packet ID:	`0xc491dd01` Used for correlation across gateways
Timestamp:	2026-03-22 20:02:12 UTC
From Node:	Meshtastic c940 (c940)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	🧟🛰️ Detector de Zombies (FntZ)
Channel:	LongFast
RSSI:	-93 dBm
SNR:	3.5 dBm
Hop Info:	2/4 hops Start: 4, Limit: 2

Long Name:	SouL CL 8
Short Name:	c940
Node ID:	!a0ccc940
MAC Address:	MO2gzMlA
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:	!b03d0e74
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b03d0e74` 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`	`2697775424` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-93.0` dBm Signal strength at gateway	int32
`rx_snr`	`3.50` dB Signal quality at gateway	float
`rx_time`	`1774209730` 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`	`1774209732.0156155` 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)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b03d0e74`
Signal Metrics:	RSSI: -93.0 dBm SNR: 3.50 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": "!a0ccc940", "long_name": "SouL CL 8", "short_name": "c940", "macaddr": "MO2gzMlA", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b03d0e74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697775424, "to": 4294967295, "id": 3297893633, "rx_time": 1774209730, "rx_snr": 3.5, "rx_rssi": -93, "hop_limit": 2, "hop_start": 4, "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": "0a092161306363633934301209536f754c20434c20381a0463393430220630eda0ccc940282b4220f422d601b99afbfdb8276c2da138a0f880567d3a20710a2bf2dd12a8e4c268664800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a0ccc940", "long_name": "SouL CL 8", "short_name": "c940", "macaddr": "MO2gzMlA", "hw_model": "HELTEC_V3", "public_key": "9CLWAbma+/24J2wtoTig+IBWfTogcQor8t0SqOTCaGY=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a092161306363633934301209536f754c20434c20381a0463393430220630eda0ccc940282b4220f422d601b99afbfdb8276c2da138a0f880567d3a20710a2bf2dd12a8e4c268664800

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 #3068095 Success

Packet Information

Payload Data

Decoded Data: