Packet #3563188

Database ID:	3563188
Mesh Packet ID:	`0x07f416e6` Used for correlation across gateways
Timestamp:	2025-07-12 22:35:10 UTC
From Node:	MeshIsidro01 (ISI1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Pepino 🥒 📡 (🥒)
Channel:	MediumSlow
RSSI:	-90 dBm
SNR:	5.5 dBm
Hop Info:	1/4 hops Start: 4, Limit: 3

Long Name:	MeshIsidro01
Short Name:	ISI1
Node ID:	!a0cb572c
MAC Address:	MO2gy1cs
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:	75 bytes
Gateway:	!0177dca1
Channel:	MediumSlow
Payload Type:	NODEINFO_APP
Hop Count:	1 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!0177dca1` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2697680684` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-90.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.50` dB Signal quality at gateway	float
`rx_time`	`1752359709` 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`	`44` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752359710.8255932` 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)
✓ Custom channel: MediumSlow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!0177dca1`
Signal Metrics:	RSSI: -90.0 dBm SNR: 5.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!a0cb572c", "long_name": "MeshIsidro01", "short_name": "ISI1", "macaddr": "MO2gy1cs", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!0177dca1", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697680684, "to": 4294967295, "id": 133437158, "rx_time": 1752359709, "rx_snr": 5.5, "rx_rssi": -90, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 44, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216130636235373263120c4d65736849736964726f30311a0449534931220630eda0cb572c282b4220f0aff1d8907a4d9dac3885ff1d7781bf03286a38871296f9f937919e85638604", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a0cb572c", "long_name": "MeshIsidro01", "short_name": "ISI1", "macaddr": "MO2gy1cs", "hw_model": "HELTEC_V3", "public_key": "8K/x2JB6TZ2sOIX/HXeBvwMoajiHEpb5+TeRnoVjhgQ=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a09216130636235373263120c4d65736849736964726f30311a0449534931220630eda0cb572c282b4220f0aff1d8907a4d9dac3885ff1d7781bf03286a38871296f9f937919e85638604

Hex Analysis:

Size:	75 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 #3563188 Success

Packet Information

Payload Data

Decoded Data: