Packet #3906268

Database ID:	3906268
Mesh Packet ID:	`0x300d2fb3` Used for correlation across gateways
Timestamp:	2025-07-16 19:20:05 UTC
From Node:	Meshtastic 2224 (2224)
To Node:	!f98d6e74 (6e74)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EA7-CA-015_Chiclana☀️ (575c)
Channel:	Iberia
RSSI:	-106 dBm
SNR:	0.25 dBm
Hop Info:	1/7 hops Start: 7, Limit: 6

Long Name:	Meshtastic 2224
Short Name:	2224
Node ID:	!33692224
MAC Address:	ZOgzaSIk
Hardware:	HELTEC_WSL_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:	!1570575c
Channel:	Iberia
Payload Type:	NODEINFO_APP
Hop Count:	1 / 7

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 (1 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!1570575c` Node ID format
`channel_id`	`Iberia`
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`862528036` Source node ID	uint32
`to`	`4186795636` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	`6` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-106.0` dBm Signal strength at gateway	int32
`rx_snr`	`0.25` dB Signal quality at gateway	float
`rx_time`	`1752794283` 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`	`41` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752693605.0546033` 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: Iberia
✓ Gateway node ID tracked

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!1570575c`
Signal Metrics:	RSSI: -106.0 dBm SNR: 0.25 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": "!33692224", "long_name": "Meshtastic 2224", "short_name": "2224", "macaddr": "ZOgzaSIk", "hw_model": "HELTEC_WSL_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!1570575c", "channel_id": "Iberia", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862528036, "to": 4186795636, "id": 806170547, "rx_time": 1752794283, "rx_snr": 0.25, "rx_rssi": -106, "hop_limit": 6, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 41, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213333363932323234120f4d65736874617374696320323232341a0432323234220664e833692224282c4220ca92f78ba1b7a68fdc097ecb11e0e6afd5e17c0000dbaee134b552f5c972dc7e4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!33692224", "long_name": "Meshtastic 2224", "short_name": "2224", "macaddr": "ZOgzaSIk", "hw_model": "HELTEC_WSL_V3", "public_key": "ypL3i6G3po/cCX7LEeDmr9XhfAAA267hNLVS9cly3H4=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213333363932323234120f4d65736874617374696320323232341a0432323234220664e833692224282c4220ca92f78ba1b7a68fdc097ecb11e0e6afd5e17c0000dbaee134b552f5c972dc7e4800

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 #3906268 Success

Packet Information

Payload Data

Decoded Data: