Packet #796082

Database ID:	796082
Mesh Packet ID:	`0xb3cc21a0` Used for correlation across gateways
Timestamp:	2026-05-25 11:06:37 UTC
From Node:	SI02 (aeb8)
To Node:	!74de7b9f (7b9f)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	SI02 (aeb8)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	3/3 hops Start: 3, Limit: 0
Relay Node:	None

Long Name:	SI02
Short Name:	SI02
Node ID:	!da64aeb8
MAC Address:	NLfaZK64
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:	33 bytes
Gateway:	!da64aeb8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

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
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!da64aeb8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (33 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3664031416` Source node ID	uint32
`to`	`1960737695` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`33` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1779706993` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` Packet priority level	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`	Not set	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 (3 hops)

MQTT-Specific Fields

Gateway ID: !da64aeb8

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	33 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!da64aeb8", "long_name": "SI02", "short_name": "SI02", "macaddr": "NLfaZK64", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3664031416, "to": 1960737695, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGE2NGFlYjgSBFNJMDIaBFNJMDIiBjS32mSuuCgr", "want_response": true }, "id": 3016499616, "rx_time": 1779706993, "priority": "BACKGROUND", "hop_start": 3 }, "channel_id": "LongFast", "gateway_id": "!da64aeb8" }, "mesh_packet": { "from": 3664031416, "to": 1960737695, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGE2NGFlYjgSBFNJMDIaBFNJMDIiBjS32mSuuCgr", "want_response": true, "parsed_payload": { "id": "!da64aeb8", "long_name": "SI02", "short_name": "SI02", "macaddr": "NLfaZK64", "hw_model": "HELTEC_V3", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 3016499616, "rx_time": 1779706993, "priority": "BACKGROUND", "hop_start": 3 } }

Raw Packet Data (33 bytes)

0a092164613634616562381204534930321a0453493032220634b7da64aeb8282b

Hex Analysis:

Size:	33 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 #796082 Success

Packet Information

Payload Data

Decoded Data: