Packet #3876918

Database ID:	3876918
Mesh Packet ID:	`0xcab2f77b` Used for correlation across gateways
Timestamp:	2025-07-16 12:07:34 UTC
From Node:	Fenix_Enrique (FenE)
To Node:	Hrdrtn Base🗼 (HR1)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Wake Up, Neo...📡 (NEO)
Channel:	MediumSlow
RSSI:	-109 dBm
SNR:	-14.0 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0

Long Name:	Fenix_Enrique
Short Name:	FenE
Node ID:	!849a52d0
MAC Address:	sIGEmlLQ
Hardware:	HELTEC_WIRELESS_PAPER

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:	!a2e17690
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`	`!a2e17690` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2224706256` Source node ID	uint32
`to`	`1827837755` 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`	`-109.0` dBm Signal strength at gateway	int32
`rx_snr`	`-14.00` dB Signal quality at gateway	float
`rx_time`	`1752667654` 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`	`199` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752667654.9628189` 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:	`!a2e17690`
Signal Metrics:	RSSI: -109.0 dBm SNR: -14.00 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": "!849a52d0", "long_name": "Fenix_Enrique", "short_name": "FenE", "macaddr": "sIGEmlLQ", "hw_model": "HELTEC_WIRELESS_PAPER" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a2e17690", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2224706256, "to": 1827837755, "id": 3400726395, "rx_time": 1752667654, "rx_snr": -14.0, "rx_rssi": -109, "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": 199, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213834396135326430120d46656e69785f456e72697175651a0446656e452206b081849a52d028314220b760393c8a193df4792d4a282a531bcc179a7fc3e8eafa6fa16c4e194afd2641", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!849a52d0", "long_name": "Fenix_Enrique", "short_name": "FenE", "macaddr": "sIGEmlLQ", "hw_model": "HELTEC_WIRELESS_PAPER", "public_key": "t2A5PIoZPfR5LUooKlMbzBeaf8Po6vpvoWxOGUr9JkE=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a09213834396135326430120d46656e69785f456e72697175651a0446656e452206b081849a52d028314220b760393c8a193df4792d4a282a531bcc179a7fc3e8eafa6fa16c4e194afd2641

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 #3876918 Success

Packet Information

Payload Data

Decoded Data: