Packet #3943609

Database ID:	3943609
Mesh Packet ID:	`0x36b58171` Used for correlation across gateways
Timestamp:	2025-07-17 05:44:38 UTC
From Node:	Faketonik SD 🗼📡 (Fak3)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	CROQUETASTIC-CL-868 (CRQT)
Channel:	LongFast
RSSI:	-30 dBm
SNR:	10.0 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5

Battery:	31%
Voltage:	3.54 V
Channel Usage:	3.0%
Air Util TX:	1.3%

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:	28 bytes
Gateway:	!ea246298
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	2 / 7

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`	`!ea246298` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2959762595` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`67` TELEMETRY_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-30.0` dBm Signal strength at gateway	int32
`rx_snr`	`10.00` dB Signal quality at gateway	float
`rx_time`	`1752731077` 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`	`32` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752731078.6069274` 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:	`!ea246298`
Signal Metrics:	RSSI: -30.0 dBm SNR: 10.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	28 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1752731074, "device_metrics": { "battery_level": 31, "voltage": 3.545, "channel_utilization": 3.0, "air_util_tx": 1.3411945, "uptime_seconds": 303631 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ea246298", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2959762595, "to": 4294967295, "id": 917864817, "rx_time": 1752731077, "rx_snr": 10.0, "rx_rssi": -30, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 32, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0dc28d78681215081f1548e162401d000040402543acab3f288fc412", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1752731074, "device_metrics": { "battery_level": 31, "voltage": 3.545, "channel_utilization": 3.0, "air_util_tx": 1.3411945, "uptime_seconds": 303631 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }

Raw Packet Data (28 bytes)

0dc28d78681215081f1548e162401d000040402543acab3f288fc412

Hex Analysis:

Size:	28 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 #3943609 Success

Packet Information

Payload Data

Decoded Data:

Device Metrics: