Packet #2391445

Database ID:	2391445
Mesh Packet ID:	`0xc02ff4a9` Used for correlation across gateways
Timestamp:	2025-06-30 16:46:38 UTC
From Node:	Huerta Otea (hta)
To Node:	!6058088c (088c)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EGO EB1 (ego)
Channel:	LongFast
RSSI:	-117 dBm
SNR:	-10.75 dBm
Hop Info:	1/5 hops Start: 5, Limit: 4

Long Name:	Huerta Otea
Short Name:	hta
Node ID:	!b03d4cd0
MAC Address:	NM2wPUzQ
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:	75 bytes
Gateway:	!67768bfa
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`	`!67768bfa` 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`	`2956807376` Source node ID	uint32
`to`	`1616382092` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` 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`	`-117.0` dBm Signal strength at gateway	int32
`rx_snr`	`-10.75` dB Signal quality at gateway	float
`rx_time`	`1751301996` 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`	`60` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751301998.4755006` 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:	`!67768bfa`
Signal Metrics:	RSSI: -117.0 dBm SNR: -10.75 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": "!b03d4cd0", "long_name": "Huerta Otea", "short_name": "hta", "macaddr": "NM2wPUzQ", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!67768bfa", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956807376, "to": 1616382092, "id": 3224368297, "rx_time": 1751301996, "rx_snr": -10.75, "rx_rssi": -117, "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": 60, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216230336434636430120b487565727461204f7465611a03687461220634cdb03d4cd0282b4220c6ba78dd5b34137534ad21d35854f811138909edce99189e67c984d6bf1c3d0c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b03d4cd0", "long_name": "Huerta Otea", "short_name": "hta", "macaddr": "NM2wPUzQ", "hw_model": "HELTEC_V3", "public_key": "xrp43Vs0E3U0rSHTWFT4EROJCe3OmRieZ8mE1r8cPQw=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a09216230336434636430120b487565727461204f7465611a03687461220634cdb03d4cd0282b4220c6ba78dd5b34137534ad21d35854f811138909edce99189e67c984d6bf1c3d0c4800

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 #2391445 Success

Packet Information

Payload Data

Decoded Data: