Packet #1736885

Database ID:	1736885
Mesh Packet ID:	`0x23491a2f` Used for correlation across gateways
Timestamp:	2026-04-04 10:00:43 UTC
From Node:	Vratsa G1 🇧🇬🌐🛰️ (VRG1)
To Node:	web-bot (wbot)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	Vratsa G1 🇧🇬🌐🛰️ (VRG1)
Channel:	Bulgaria
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`38` VRG1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Battery:	101%
Channel Usage:	6.9%
Air Util TX:	0.6%

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:	27 bytes
Gateway:	!23d03138
Channel:	Bulgaria
Payload Type:	TELEMETRY_APP
Hop Count:	0 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!23d03138` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (27 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`600846648` Source node ID	uint32
`to`	`4007575066` Target node ID	uint32
`decoded.portnum`	`TELEMETRY_APP` TELEMETRY_APP	enum
`decoded.payload_length`	`27` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1775296842` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`RELIABLE` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`37` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`56` 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: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
✓ Custom channel: Bulgaria
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!23d03138`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	27 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1775296842, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 6.9300003, "air_util_tx": 0.6008889, "uptime_seconds": 8461 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 600846648, "to": 4007575066, "channel": 37, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DUrh0GkSFAhlFQAAAAAdkMLdQCXb0xk/KI1C", "request_id": 2951437695, "bitfield": 1 }, "id": 591993391, "rx_time": 1775296842, "hop_limit": 2, "priority": "RELIABLE", "hop_start": 2, "relay_node": 56 }, "channel_id": "Bulgaria", "gateway_id": "!23d03138" }, "mesh_packet": { "from": 600846648, "to": 4007575066, "channel": 37, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DUrh0GkSFAhlFQAAAAAdkMLdQCXb0xk/KI1C", "request_id": 2951437695, "bitfield": 1, "parsed_payload": { "time": 1775296842, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 6.9300003, "air_util_tx": 0.6008889, "uptime_seconds": 8461 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } }, "id": 591993391, "rx_time": 1775296842, "hop_limit": 2, "priority": "RELIABLE", "hop_start": 2, "relay_node": 56 } }

Raw Packet Data (27 bytes)

0d4ae1d0691214086515000000001d90c2dd4025dbd3193f288d42

Hex Analysis:

Size:	27 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 #1736885 Success

Packet Information

Payload Data

Decoded Data:

Device Metrics: