Packet #14670007

Database ID:	14670007
Mesh Packet ID:	`0x09c0efff` Used for correlation across gateways
Timestamp:	2026-04-05 11:59:19 UTC
From Node:	Meshtastic 6f68 (6f68)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Fostral (FSTR)
Channel:	LongFast
RSSI:	-71 dBm
SNR:	-7.5 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Long Name:	Meshtastic 6f68
Short Name:	6f68
Node ID:	!acaa6f68
MAC Address:	2IWsqm9o
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:	80 bytes
Gateway:	!1309d640
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	7 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!1309d640` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2896850792` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-71.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1775379557` 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`	`228` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775379559.0852485` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!1309d640`
Signal Metrics:	RSSI: -71.0 dBm SNR: -7.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!acaa6f68", "long_name": "Meshtastic 6f68", "short_name": "6f68", "macaddr": "2IWsqm9o", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!1309d640", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2896850792, "to": 4294967295, "id": 163639295, "rx_time": 1775379557, "rx_snr": -7.5, "rx_rssi": -71, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 228, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216163616136663638120f4d65736874617374696320366636381a04366636382206d885acaa6f68282b4220aa3a927c1fa65965bf041e7c4bc1c3200cd7ea3578f3b2bf3e72b66fe166562c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!acaa6f68", "long_name": "Meshtastic 6f68", "short_name": "6f68", "macaddr": "2IWsqm9o", "hw_model": "HELTEC_V3", "public_key": "qjqSfB+mWWW/BB58S8HDIAzX6jV487K/PnK2b+FmViw=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09216163616136663638120f4d65736874617374696320366636381a04366636382206d885acaa6f68282b4220aa3a927c1fa65965bf041e7c4bc1c3200cd7ea3578f3b2bf3e72b66fe166562c4800

Hex Analysis:

Size:	80 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 #14670007 Success

Packet Information

Payload Data

Decoded Data: