Packet #3202899

Database ID:	3202899
Mesh Packet ID:	`0x92f02628` Used for correlation across gateways
Timestamp:	2026-03-31 07:31:02 UTC
From Node:	LuzTavira-Solar☀️-GT-8🇵🇹 (GT01)
To Node:	!69858ba0 (8ba0)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	GLD-GW-8🇵🇹 (GLGW)
Channel:	LongFast
RSSI:	-103 dBm
SNR:	-8.75 dBm
Hop Info:	0/4 hops Start: 4, Limit: 4

Long Name:	LuzTavira-Solar☀️-GT-8🇵🇹
Short Name:	GT01
Node ID:	!735b8e95
MAC Address:	xFBzW46V
Hardware:	XIAO_NRF52_KIT

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:	101 bytes
Gateway:	!d45ab7f0
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 4

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!d45ab7f0` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (101 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1935380117` Source node ID	uint32
`to`	`1770359712` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`101` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-103.0` dBm Signal strength at gateway	int32
`rx_snr`	`-8.75` dB Signal quality at gateway	float
`rx_time`	`1774938661` 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`	`149` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774938662.9119298` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!d45ab7f0`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -103.0 dBm SNR: -8.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	101 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!735b8e95", "long_name": "LuzTavira-Solar☀️-GT-8🇵🇹", "short_name": "GT01", "macaddr": "xFBzW46V", "hw_model": "XIAO_NRF52_KIT" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!d45ab7f0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1935380117, "to": 1770359712, "id": 2465211944, "rx_time": 1774938661, "rx_snr": -8.75, "rx_rssi": -103, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 149, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921373335623865393512224c757a5461766972612d536f6c6172e29880efb88f2d47542d38f09f87b5f09f87b91a04475430312206c450735b8e952858380c42203d88f1e8990140a9edef5f7b631e7965c0f866c8401bc7ce1d0cb94370f01b0c4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!735b8e95", "long_name": "LuzTavira-Solar☀️-GT-8🇵🇹", "short_name": "GT01", "macaddr": "xFBzW46V", "hw_model": "XIAO_NRF52_KIT", "role": "CLIENT_BASE", "public_key": "PYjx6JkBQKnt7197Yx55ZcD4ZshAG8fOHQy5Q3DwGww=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (101 bytes)

0a0921373335623865393512224c757a5461766972612d536f6c6172e29880efb88f2d47542d38f09f87b5f09f87b91a04475430312206c450735b8e952858380c42203d88f1e8990140a9edef5f7b631e7965c0f866c8401bc7ce1d0cb94370f01b0c4801

Hex Analysis:

Size:	101 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 #3202899 Success

Packet Information

Payload Data

Decoded Data: