Packet #171490

Database ID:	171490
Mesh Packet ID:	`0xbfc2a363` Used for correlation across gateways
Timestamp:	2025-09-10 02:57:44 UTC
From Node:	Vratsa Telegram Bot 🇧🇬🤖🛰️ (VRTB)
To Node:	DaemonKeeper (DK01)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Vratsa Telegram Bot 🇧🇬🤖🛰️ (VRTB)
Channel:	Bulgaria
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/2 hops Start: 2, Limit: 2

Long Name:	Vratsa Telegram Bot 🇧🇬🤖🛰️
Short Name:	VRTB
Node ID:	!23d164f8
MAC Address:	5LMj0WT4
Hardware:	HELTEC_HT62

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:	102 bytes
Gateway:	!23d164f8
Channel:	Bulgaria
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 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

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!23d164f8` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (102 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`600925432` Source node ID	uint32
`to`	`22967613` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`102` 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`	`1757462258` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`248` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757462264.5869389` Unix timestamp	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:	`!23d164f8`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	102 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!23d164f8", "long_name": "Vratsa Telegram Bot 🇧🇬🤖🛰️", "short_name": "VRTB", "macaddr": "5LMj0WT4", "hw_model": "HELTEC_HT62" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!23d164f8", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 600925432, "to": 22967613, "id": 3217204067, "rx_time": 1757462258, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 248, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921323364313634663812275672617473612054656c656772616d20426f7420f09f87a7f09f87acf09fa496f09f9bb0efb88f1a04565254422206e4b323d164f828354220f8373beaadca81d17530dd550495c99cbe8a1af7d388e3a59b5ffcd0a4bb3f56", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!23d164f8", "long_name": "Vratsa Telegram Bot 🇧🇬🤖🛰️", "short_name": "VRTB", "macaddr": "5LMj0WT4", "hw_model": "HELTEC_HT62", "public_key": "+Dc76q3KgdF1MN1VBJXJnL6KGvfTiOOlm1/80KS7P1Y=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (102 bytes)

0a0921323364313634663812275672617473612054656c656772616d20426f7420f09f87a7f09f87acf09fa496f09f9bb0efb88f1a04565254422206e4b323d164f828354220f8373beaadca81d17530dd550495c99cbe8a1af7d388e3a59b5ffcd0a4bb3f56

Hex Analysis:

Size:	102 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 #171490 Success

Packet Information

Payload Data

Decoded Data: