Packet #10171082

Database ID:	10171082
Mesh Packet ID:	`0x1981f6fd` Used for correlation across gateways
Timestamp:	2025-09-11 19:59:43 UTC
From Node:	thgn3d68 (th68)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Tlgo 📡🌐🔋🔌 (TLG0)
Channel:	MediumSlow
RSSI:	-114 dBm
SNR:	-6.5 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0

Long Name:	thgn3d68
Short Name:	th68
Node ID:	!bba83d68
MAC Address:	LLy7qD1o
Hardware:	TBEAM

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:	73 bytes
Gateway:	!da638a24
Channel:	MediumSlow
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!da638a24` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (73 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3148365160` Source node ID	uint32
`to`	`1129719940` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`73` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-114.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.50` dB Signal quality at gateway	float
`rx_time`	`1757620782` 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`	`8` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757620783.5510132` 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: MediumSlow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!da638a24`
Signal Metrics:	RSSI: -114.0 dBm SNR: -6.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	73 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!bba83d68", "long_name": "thgn3d68", "short_name": "th68", "macaddr": "LLy7qD1o", "hw_model": "TBEAM" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!da638a24", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3148365160, "to": 1129719940, "id": 427947773, "rx_time": 1757620782, "rx_snr": -6.5, "rx_rssi": -114, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921626261383364363812087468676e336436381a047468363822062cbcbba83d682804422040d5bd17ffbbe3c831ce8a8ee95f626d963c9ff4774cd274c6c815e9cbc7cf574800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!bba83d68", "long_name": "thgn3d68", "short_name": "th68", "macaddr": "LLy7qD1o", "hw_model": "TBEAM", "public_key": "QNW9F/+748gxzoqO6V9ibZY8n/R3TNJ0xsgV6cvHz1c=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (73 bytes)

0a0921626261383364363812087468676e336436381a047468363822062cbcbba83d682804422040d5bd17ffbbe3c831ce8a8ee95f626d963c9ff4774cd274c6c815e9cbc7cf574800

Hex Analysis:

Size:	73 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 #10171082 Success

Packet Information

Payload Data

Decoded Data: