Packet #1613004

Database ID:	1613004
Mesh Packet ID:	`0x7ed99b56` Used for correlation across gateways
Timestamp:	2025-11-05 09:07:25 UTC
From Node:	SUSQ VAL PA Mesh - Reading - BARC (SVMI)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	corruptedstack Weather (cswx)
Channel:	LongFast
RSSI:	-105 dBm
SNR:	-12.25 dBm
Hop Info:	3/7 hops Start: 7, Limit: 4
Relay Node:	None

Temperature:	19.5°C
Humidity:	21.5%

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:	17 bytes
Gateway:	!b2a79554
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	3 / 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`	`!b2a79554` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (17 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3437096703` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`67` TELEMETRY_APP	enum
`decoded.payload_length`	`17` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-105.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.25` dB Signal quality at gateway	float
`rx_time`	`1762333709` 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`	`1762333645.7402163` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b2a79554`
Signal Metrics:	RSSI: -105.0 dBm SNR: -12.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	17 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1762333691, "environment_metrics": { "temperature": 19.484901, "relative_humidity": 21.506691 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b2a79554", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3437096703, "to": 4294967295, "id": 2128190294, "rx_time": 1762333709, "rx_snr": -12.25, "rx_rssi": -105, "hop_limit": 4, "hop_start": 7, "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": 67, "payload": "0dfb130b691a0a0d14e19b4115b40dac41", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1762333691, "environment_metrics": { "temperature": 19.484901, "relative_humidity": 21.506691 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }

Raw Packet Data (17 bytes)

0dfb130b691a0a0d14e19b4115b40dac41

Hex Analysis:

Size:	17 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.

Gateway	Time Offset	RSSI	SNR	Hops	Relay	Channel	Timestamp	Actions
corruptedstack Weather (cswx) Primary	0.000s Reference	-105.0 dBm	-12.25 dB	3	-	LongFast	2025-11-05 09:07:25 UTC	Current
🦨 corruptedstack🦨 meshtoad 🐸 (dmbp)	+0.171s After	Unknown	Unknown	4	`54` cswx	LongFast	2025-11-05 09:07:25 UTC	View
csbot (dmbb)	+0.292s After	Unknown	Unknown	4	`54` cswx	LongFast	2025-11-05 09:07:26 UTC	View

Packet #1613004 Success

Packet Information

Payload Data

Decoded Data:

Environment Metrics: