Packet #146096

Database ID:	146096
Mesh Packet ID:	`0x2ced4bdb` Used for correlation across gateways
Timestamp:	2026-04-19 10:32:00 UTC
From Node:	!33602ee0 (2ee0)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	wi3w-base (w00b)
Channel:	LongFast
RSSI:	-74 dBm
SNR:	7.0 dBm
Hop Info:	6/6 hops Start: 6, Limit: 0
Relay Node:	`68` AWQb , 2868 , 3568 , ARDU , BLDN , 1c68 , a868 , 1a68 , WDv4 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Temperature:	20.1°C
Humidity:	52.5%
Pressure:	984.1 hPa

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:	22 bytes
Gateway:	!24da43f9
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	6 / 6

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

Field	Value
`gateway_id`	`!24da43f9` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (22 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`861941472` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`TELEMETRY_APP` TELEMETRY_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-74.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.00` dB Signal quality at gateway	float
`rx_time`	`1776594758` 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`	`104` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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 (6 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!24da43f9`
Signal Metrics:	RSSI: -74.0 dBm SNR: 7.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	22 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1776594542, "environment_metrics": { "temperature": 20.13, "relative_humidity": 52.533203, "barometric_pressure": 984.06635 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 861941472, "to": 4294967295, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DW6u5GkaDw09CqFBFQAiUkIdPwR2RA==", "bitfield": 0 }, "id": 753748955, "rx_time": 1776594758, "rx_snr": 7.0, "rx_rssi": -74, "hop_start": 6, "relay_node": 104, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!24da43f9" }, "mesh_packet": { "from": 861941472, "to": 4294967295, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DW6u5GkaDw09CqFBFQAiUkIdPwR2RA==", "bitfield": 0, "parsed_payload": { "time": 1776594542, "environment_metrics": { "temperature": 20.13, "relative_humidity": 52.533203, "barometric_pressure": 984.06635 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } }, "id": 753748955, "rx_time": 1776594758, "rx_snr": 7.0, "rx_rssi": -74, "hop_start": 6, "relay_node": 104, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (22 bytes)

0d6eaee4691a0f0d3d0aa14115002252421d3f047644

Hex Analysis:

Size:	22 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 #146096 Success

Packet Information

Payload Data

Decoded Data:

Environment Metrics: