Packet #10834014

Database ID:	10834014
Mesh Packet ID:	`0xa1b290df` Used for correlation across gateways
Timestamp:	2025-09-16 09:45:59 UTC
From Node:	CACERES RED (RED)
To Node:	CACERES PEP1 (PEP1)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Gamusino01 (GS01)
Channel:	LongFast
RSSI:	-111 dBm
SNR:	-3.0 dBm
Hop Info:	1/2 hops Start: 2, Limit: 1

Long Name:	CACERES RED
Short Name:	RED
Node ID:	!984d1f0b
MAC Address:	5TKYTR8L
Hardware:	RAK4631

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:	75 bytes
Gateway:	!da104edd
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 2

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`	`!da104edd` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2555191051` Source node ID	uint32
`to`	`321385816` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-111.0` dBm Signal strength at gateway	int32
`rx_snr`	`-3.00` dB Signal quality at gateway	float
`rx_time`	`1758015956` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1758015959.7637446` 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:	`!da104edd`
Signal Metrics:	RSSI: -111.0 dBm SNR: -3.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!984d1f0b", "long_name": "CACERES RED", "short_name": "RED", "macaddr": "5TKYTR8L", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!da104edd", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2555191051, "to": 321385816, "id": 2712834271, "rx_time": 1758015956, "rx_snr": -3.0, "rx_rssi": -111, "hop_limit": 1, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213938346431663062120b43414345524553205245441a035245442206e532984d1f0b28094220d809e498701ec2654bcdd0e7799bb5561b15224504d74335dcbe2a01691ec5564800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!984d1f0b", "long_name": "CACERES RED", "short_name": "RED", "macaddr": "5TKYTR8L", "hw_model": "RAK4631", "public_key": "2AnkmHAewmVLzdDneZu1VhsVIkUE10M13L4qAWkexVY=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a09213938346431663062120b43414345524553205245441a035245442206e532984d1f0b28094220d809e498701ec2654bcdd0e7799bb5561b15224504d74335dcbe2a01691ec5564800

Hex Analysis:

Size:	75 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 #10834014 Success

Packet Information

Payload Data

Decoded Data: