Packet #2310064

Database ID:	2310064
Mesh Packet ID:	`0xedb21d39` Used for correlation across gateways
Timestamp:	2025-06-29 22:59:09 UTC
From Node:	FRAN 868mhz (F8)
To Node:	JPG portable 868 🏠🇪🇦 (JPG8)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Alex (AMG)
Channel:	LongFast
RSSI:	-87 dBm
SNR:	5.5 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3

Long Name:	FRAN 868mhz
Short Name:	F8
Node ID:	!43569500
MAC Address:	SMpDVpUA
Hardware:	LILYGO_TBEAM_S3_CORE

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:	72 bytes
Gateway:	!433ce0c8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 5

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433ce0c8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (72 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1129747712` Source node ID	uint32
`to`	`116749816` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`72` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-87.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.50` dB Signal quality at gateway	float
`rx_time`	`1751237948` 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`	`120` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751237949.5595279` 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
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433ce0c8`
Signal Metrics:	RSSI: -87.0 dBm SNR: 5.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	72 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!43569500", "long_name": "FRAN 868mhz", "short_name": "F8", "macaddr": "SMpDVpUA", "hw_model": "LILYGO_TBEAM_S3_CORE" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433ce0c8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129747712, "to": 116749816, "id": 3987873081, "rx_time": 1751237948, "rx_snr": 5.5, "rx_rssi": -87, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433353639353030120b4652414e203836386d687a1a024638220648ca43569500280c4220d9764946c08ea8cd335b1b466814d523ff0fbb5f40665dc04498fd44a8573538", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!43569500", "long_name": "FRAN 868mhz", "short_name": "F8", "macaddr": "SMpDVpUA", "hw_model": "LILYGO_TBEAM_S3_CORE", "public_key": "2XZJRsCOqM0zWxtGaBTVI/8Pu19AZl3ARJj9RKhXNTg=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (72 bytes)

0a09213433353639353030120b4652414e203836386d687a1a024638220648ca43569500280c4220d9764946c08ea8cd335b1b466814d523ff0fbb5f40665dc04498fd44a8573538

Hex Analysis:

Size:	72 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 #2310064 Success

Packet Information

Payload Data

Decoded Data: