Packet #3308971

Database ID:	3308971
Mesh Packet ID:	`0x229f9509` Used for correlation across gateways
Timestamp:	2025-07-10 13:15:56 UTC
From Node:	Meshtastic ae35 (ae35)
To Node:	🛸UFO4🛸 (UFO4)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	🛸UFO4🛸 (UFO4)
Channel:	LongFast
RSSI:	-39 dBm
SNR:	6.5 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3

Long Name:	Meshtastic ae35
Short Name:	ae35
Node ID:	!df8bae35
MAC Address:	y9Pfi641
Hardware:	NRF52_PROMICRO_DIY

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:	!db2963f0
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

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`	`!db2963f0` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3750473269` Source node ID	uint32
`to`	`3676922864` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-39.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.50` dB Signal quality at gateway	float
`rx_time`	`1752153353` 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`	`53` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752153356.2810965` 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:	`!db2963f0`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -39.0 dBm SNR: 6.50 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": "!df8bae35", "long_name": "Meshtastic ae35", "short_name": "ae35", "macaddr": "y9Pfi641", "hw_model": "NRF52_PROMICRO_DIY" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!db2963f0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3750473269, "to": 3676922864, "id": 580883721, "rx_time": 1752153353, "rx_snr": 6.5, "rx_rssi": -39, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 53, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216466386261653335120f4d65736874617374696320616533351a04616533352206cbd3df8bae35283f4220a4e87a44fb621dac4d2700f8866e5dcc798bfd0a0cbd59c82d731d986a50792a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!df8bae35", "long_name": "Meshtastic ae35", "short_name": "ae35", "macaddr": "y9Pfi641", "hw_model": "NRF52_PROMICRO_DIY", "public_key": "pOh6RPtiHaxNJwD4hm5dzHmL/QoMvVnILXMdmGpQeSo=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09216466386261653335120f4d65736874617374696320616533351a04616533352206cbd3df8bae35283f4220a4e87a44fb621dac4d2700f8866e5dcc798bfd0a0cbd59c82d731d986a50792a4800

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 #3308971 Success

Packet Information

Payload Data

Decoded Data: