Packet #3225441

Database ID:	3225441
Mesh Packet ID:	`0x718cd9f0` Used for correlation across gateways
Timestamp:	2026-04-01 14:08:10 UTC
From Node:	SantaHelena-RL-8 (SHLN)
To Node:	!b03d2c8c (2c8c)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	HK-MANG-GW-8 (HKG5)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-2.0 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2

Long Name:	SantaHelena-RL-8
Short Name:	SHLN
Node ID:	!6f0ae307
MAC Address:	4GRvCuMH
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:	83 bytes
Gateway:	!9ea0a750
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 2 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`	`!9ea0a750` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (83 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1862984455` Source node ID	uint32
`to`	`2956799116` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`83` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-2.00` dB Signal quality at gateway	float
`rx_time`	`1775048887` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	True Acknowledgment 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`	`116` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775048890.060595` 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)
✓ Acknowledgment requested
✓ 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

Want ack:	`True`
Gateway ID:	`!9ea0a750`
Signal Metrics:	RSSI: -110.0 dBm SNR: -2.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	83 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!6f0ae307", "long_name": "SantaHelena-RL-8", "short_name": "SHLN", "macaddr": "4GRvCuMH", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9ea0a750", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1862984455, "to": 2956799116, "id": 1905056240, "rx_time": 1775048887, "rx_snr": -2.0, "rx_rssi": -110, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 116, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213666306165333037121053616e746148656c656e612d524c2d381a0453484c4e2206e0646f0ae3072809380b422055fed8eb220eb248cd8a3d67b6cdf7ab735409ecff0520338cd1b669eb4597444801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6f0ae307", "long_name": "SantaHelena-RL-8", "short_name": "SHLN", "macaddr": "4GRvCuMH", "hw_model": "RAK4631", "role": "ROUTER_LATE", "public_key": "Vf7Y6yIOskjNij1nts33q3NUCez/BSAzjNG2aetFl0Q=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (83 bytes)

0a09213666306165333037121053616e746148656c656e612d524c2d381a0453484c4e2206e0646f0ae3072809380b422055fed8eb220eb248cd8a3d67b6cdf7ab735409ecff0520338cd1b669eb4597444801

Hex Analysis:

Size:	83 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 #3225441 Success

Packet Information

Payload Data

Decoded Data: