Packet #3044770

Database ID:	3044770
Mesh Packet ID:	`0xaa40324d` Used for correlation across gateways
Timestamp:	2026-03-21 10:05:00 UTC
From Node:	🐉🇵🇹-CL-8 (ML69)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	NC_CHARLIE-8 (NMC)
Channel:	LongFast
RSSI:	-85 dBm
SNR:	4.5 dBm
Hop Info:	3/4 hops Start: 4, Limit: 1

Long Name:	🐉🇵🇹-CL-8
Short Name:	ML69
Node ID:	!9e9f7678
MAC Address:	nBOen3Z4
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:	83 bytes
Gateway:	!b5220da3
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b5220da3` 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`	`2661250680` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`83` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-85.0` dBm Signal strength at gateway	int32
`rx_snr`	`4.50` dB Signal quality at gateway	float
`rx_time`	`1774087499` 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`	`156` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774087500.3139582` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b5220da3`
Signal Metrics:	RSSI: -85.0 dBm SNR: 4.50 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": "!9e9f7678", "long_name": "🐉🇵🇹-CL-8 ", "short_name": "ML69", "macaddr": "nBOen3Z4", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b5220da3", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661250680, "to": 4294967295, "id": 2856333901, "rx_time": 1774087499, "rx_snr": 4.5, "rx_rssi": -85, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 156, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092139653966373637381212f09f9089f09f87b5f09f87b92d434c2d38201a044d4c363922069c139e9f7678282b4220ccf1ad605454f143fdd8ce26b20527ae3bedb4086865b84477aa34435c734e0d4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9e9f7678", "long_name": "🐉🇵🇹-CL-8 ", "short_name": "ML69", "macaddr": "nBOen3Z4", "hw_model": "HELTEC_V3", "public_key": "zPGtYFRU8UP92M4msgUnrjvttAhoZbhEd6o0Q1xzTg0=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (83 bytes)

0a092139653966373637381212f09f9089f09f87b5f09f87b92d434c2d38201a044d4c363922069c139e9f7678282b4220ccf1ad605454f143fdd8ce26b20527ae3bedb4086865b84477aa34435c734e0d4800

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 #3044770 Success

Packet Information

Payload Data

Decoded Data: