Packet #2844776

Database ID:	2844776
Mesh Packet ID:	`0x0010be47` Used for correlation across gateways
Timestamp:	2026-04-17 01:36:16 UTC
From Node:	Pera Sateli (Pera)
To Node:	Zemun Dunav (Obr6)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Paxy (7eac)
Channel:	MediumFast
RSSI:	-100 dBm
SNR:	7.75 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0

Long Name:	Pera Sateli
Short Name:	Pera
Node ID:	!acaa53e4
MAC Address:	2IWsqlPk
Hardware:	HELTEC_V3

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:	76 bytes
Gateway:	!43b77eac
Channel:	MediumFast
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`	`!43b77eac` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2896843748` Source node ID	uint32
`to`	`1128135424` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`76` 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`	`-100.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.75` dB Signal quality at gateway	float
`rx_time`	`1776389775` 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`	`88` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1776389776.9000964` 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: MediumFast
✓ 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:	`!43b77eac`
Signal Metrics:	RSSI: -100.0 dBm SNR: 7.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!acaa53e4", "long_name": "Pera Sateli", "short_name": "Pera", "macaddr": "2IWsqlPk", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!43b77eac", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2896843748, "to": 1128135424, "id": 1097287, "rx_time": 1776389775, "rx_snr": 7.75, "rx_rssi": -100, "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": 88, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216163616135336534120b5065726120536174656c691a04506572612206d885acaa53e4282b4220807547c45c771f3b336690a50a77f49b252e041a07830ece97757d5ab84a33434800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!acaa53e4", "long_name": "Pera Sateli", "short_name": "Pera", "macaddr": "2IWsqlPk", "hw_model": "HELTEC_V3", "public_key": "gHVHxFx3HzszZpClCnf0myUuBBoHgw7Ol3V9WrhKM0M=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a09216163616135336534120b5065726120536174656c691a04506572612206d885acaa53e4282b4220807547c45c771f3b336690a50a77f49b252e041a07830ece97757d5ab84a33434800

Hex Analysis:

Size:	76 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 #2844776 Success

Packet Information

Payload Data

Decoded Data: