Packet #3818784

Database ID:	3818784
Mesh Packet ID:	`0xddae9229` Used for correlation across gateways
Timestamp:	2025-07-15 18:16:11 UTC
From Node:	Kiao MLV01 🇪🇸📟 (kptm)
To Node:	!da65be84 (be84)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	🌴ParadiSe 🌴 (pRdS)
Channel:	LongFast
RSSI:	-98 dBm
SNR:	4.75 dBm
Hop Info:	3/5 hops Start: 5, Limit: 2

Long Name:	Kiao MLV01 🇪🇸📟
Short Name:	kptm
Node ID:	!7aa6fe84
MAC Address:	NJh6pv6E
Hardware:	HELTEC_V2_0

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:	90 bytes
Gateway:	!ae61b778
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 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`	`!ae61b778` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (90 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2057764484` Source node ID	uint32
`to`	`3664100996` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`90` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-98.0` dBm Signal strength at gateway	int32
`rx_snr`	`4.75` dB Signal quality at gateway	float
`rx_time`	`1752603370` 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`	`1752603371.2939475` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!ae61b778`
Signal Metrics:	RSSI: -98.0 dBm SNR: 4.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	90 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!7aa6fe84", "long_name": "Kiao MLV01 🇪🇸📟", "short_name": "kptm", "macaddr": "NJh6pv6E", "hw_model": "HELTEC_V2_0" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ae61b778", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2057764484, "to": 3664100996, "id": 3719205417, "rx_time": 1752603370, "rx_snr": 4.75, "rx_rssi": -98, "hop_limit": 2, "hop_start": 5, "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": "0a0921376161366665383412174b69616f204d4c56303120f09f87aaf09f87b8f09f939f1a046b70746d220634987aa6fe84280538014220d40e37e2ddc00c2a9682170b165b1da2c7dbaaebe6794f55746966dd6dc8c3174800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!7aa6fe84", "long_name": "Kiao MLV01 🇪🇸📟", "short_name": "kptm", "macaddr": "NJh6pv6E", "hw_model": "HELTEC_V2_0", "role": "CLIENT_MUTE", "public_key": "1A434t3ADCqWghcLFlsdosfbquvmeU9VdGlm3W3Iwxc=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (90 bytes)

0a0921376161366665383412174b69616f204d4c56303120f09f87aaf09f87b8f09f939f1a046b70746d220634987aa6fe84280538014220d40e37e2ddc00c2a9682170b165b1da2c7dbaaebe6794f55746966dd6dc8c3174800

Hex Analysis:

Size:	90 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 #3818784 Success

Packet Information

Payload Data

Decoded Data: