Packet #3042984

Database ID:	3042984
Mesh Packet ID:	`0xd04512b6` Used for correlation across gateways
Timestamp:	2026-03-21 07:53:59 UTC
From Node:	rmks 868REU 01_CL 📡🛠️ (REU1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	LUMI-🐟-8 (LUMI)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-7.5 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3

Long Name:	rmks 868REU 01_CL 📡🛠️
Short Name:	REU1
Node ID:	!9eeb20d4
MAC Address:	nBOe6yDU
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:	94 bytes
Gateway:	!f7f758b5
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!f7f758b5` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (94 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2666209492` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`94` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1774079630` 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`	`212` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774079639.5571008` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!f7f758b5`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -110.0 dBm SNR: -7.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	94 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!9eeb20d4", "long_name": "rmks 868REU 01_CL 📡🛠️", "short_name": "REU1", "macaddr": "nBOe6yDU", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!f7f758b5", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2666209492, "to": 4294967295, "id": 3494187702, "rx_time": 1774079630, "rx_snr": -7.5, "rx_rssi": -110, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 212, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213965656232306434121d726d6b73203836385245552030315f434c20f09f93a1f09f9ba0efb88f1a045245553122069c139eeb20d4282b4220bc5e5cd5a85806265404c045412a32957521cba13b48b87b08ca5afed0c7aa3f4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9eeb20d4", "long_name": "rmks 868REU 01_CL 📡🛠️", "short_name": "REU1", "macaddr": "nBOe6yDU", "hw_model": "HELTEC_V3", "public_key": "vF5c1ahYBiZUBMBFQSoylXUhy6E7SLh7CMpa/tDHqj8=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (94 bytes)

0a09213965656232306434121d726d6b73203836385245552030315f434c20f09f93a1f09f9ba0efb88f1a045245553122069c139eeb20d4282b4220bc5e5cd5a85806265404c045412a32957521cba13b48b87b08ca5afed0c7aa3f4801

Hex Analysis:

Size:	94 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 #3042984 Success

Packet Information

Payload Data

Decoded Data: