Packet #7957010

Database ID:	7957010
Mesh Packet ID:	`0x5dc4298a` Used for correlation across gateways
Timestamp:	2025-08-25 10:14:40 UTC
From Node:	Tonino Corbera Solar🌞📡 (CORB)
To Node:	CLIENTECASTELLON51-868📡 (CS51)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Meshtastic Olesa (MO)
Channel:	LongFast
RSSI:	-142 dBm
SNR:	-16.75 dBm
Hop Info:	1/5 hops Start: 5, Limit: 4

Long Name:	Tonino-La Creu-📡📡🗼
Short Name:	Tov3
Node ID:	!433cf1b8
MAC Address:	SMpDPPG4
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:	92 bytes
Gateway:	!6c73ea2c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 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`	`!6c73ea2c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (92 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128067512` Source node ID	uint32
`to`	`2466574513` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`92` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-142.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.75` dB Signal quality at gateway	float
`rx_time`	`1756116880` 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`	`171` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1756116880.1935236` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!6c73ea2c`
Signal Metrics:	RSSI: -142.0 dBm SNR: -16.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	92 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433cf1b8", "long_name": "Tonino-La Creu-📡📡🗼", "short_name": "Tov3", "macaddr": "SMpDPPG4", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!6c73ea2c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128067512, "to": 2466574513, "id": 1573136778, "rx_time": 1756116880, "rx_snr": -16.75, "rx_rssi": -142, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 171, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213433336366316238121b546f6e696e6f2d4c6120437265752df09f93a1f09f93a1f09f97bc1a04546f7633220648ca433cf1b8282b422091badb43d6185adc00f6248350d6a2203002936ddde9a4cef50c978c9e7c251e4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433cf1b8", "long_name": "Tonino-La Creu-📡📡🗼", "short_name": "Tov3", "macaddr": "SMpDPPG4", "hw_model": "HELTEC_V3", "public_key": "kbrbQ9YYWtwA9iSDUNaiIDACk23d6aTO9QyXjJ58JR4=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (92 bytes)

0a09213433336366316238121b546f6e696e6f2d4c6120437265752df09f93a1f09f93a1f09f97bc1a04546f7633220648ca433cf1b8282b422091badb43d6185adc00f6248350d6a2203002936ddde9a4cef50c978c9e7c251e4800

Hex Analysis:

Size:	92 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 #7957010 Success

Packet Information

Payload Data

Decoded Data: