Packet #3150877

Database ID:	3150877
Mesh Packet ID:	`0x0c57132f` Used for correlation across gateways
Timestamp:	2026-03-27 23:13:22 UTC
From Node:	DΞLTΔ-MGØ2-CL-8 (MG02)
To Node:	Meshtastic e3db (e3db)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Fideias-CL2-8 (⚡)
Channel:	LongFast
RSSI:	-91 dBm
SNR:	1.0 dBm
Hop Info:	3/4 hops Start: 4, Limit: 1

Long Name:	DΞLTΔ-MGØ2-CL-8
Short Name:	MG02
Node ID:	!1de9de14
MAC Address:	ELQd6d4U
Hardware:	SEEED_XIAO_S3

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:	85 bytes
Gateway:	!cf78de05
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 4

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`	`!cf78de05` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (85 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`501866004` Source node ID	uint32
`to`	`1157424091` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`85` 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`	`-91.0` dBm Signal strength at gateway	int32
`rx_snr`	`1.00` dB Signal quality at gateway	float
`rx_time`	`1774653200` 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`	`148` Next hop node ID	uint32
`relay_node`	`28` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774653202.913573` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!cf78de05`
Signal Metrics:	RSSI: -91.0 dBm SNR: 1.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	85 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!1de9de14", "long_name": "DΞLTΔ-MGØ2-CL-8", "short_name": "MG02", "macaddr": "ELQd6d4U", "hw_model": "SEEED_XIAO_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!cf78de05", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 501866004, "to": 1157424091, "id": 207033135, "rx_time": 1774653200, "rx_snr": 1.0, "rx_rssi": -91, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 148, "relay_node": 28, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213164653964653134121244ce9e4c54ce942d4d47c398322d434c2d381a044d473032220610b41de9de14285138014220859567c911a1fc3e0ac7126efcc703406249c10f0ca18cb5da312572638fac6b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!1de9de14", "long_name": "DΞLTΔ-MGØ2-CL-8", "short_name": "MG02", "macaddr": "ELQd6d4U", "hw_model": "SEEED_XIAO_S3", "role": "CLIENT_MUTE", "public_key": "hZVnyRGh/D4KxxJu/McDQGJJwQ8MoYy12jElcmOPrGs=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (85 bytes)

0a09213164653964653134121244ce9e4c54ce942d4d47c398322d434c2d381a044d473032220610b41de9de14285138014220859567c911a1fc3e0ac7126efcc703406249c10f0ca18cb5da312572638fac6b4800

Hex Analysis:

Size:	85 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 #3150877 Success

Packet Information

Payload Data

Decoded Data: