Packet #3209431

Database ID:	3209431
Mesh Packet ID:	`0xa968e030` Used for correlation across gateways
Timestamp:	2026-03-31 16:56:45 UTC
From Node:	DΞLTΔ-MGØ1-CL-8 (MG01)
To Node:	!5e26c7c9 (c7c9)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Serip Portable-8 (NMP8)
Channel:	LongFast
RSSI:	-72 dBm
SNR:	6.25 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3

Long Name:	DΞLTΔ-MGØ1-CL-8
Short Name:	MG01
Node ID:	!d45ab704
MAC Address:	HNvUWrcE
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:	!9e786d08
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 5

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`	`!9e786d08` 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`	`3562714884` Source node ID	uint32
`to`	`1579599817` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`85` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-72.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.25` dB Signal quality at gateway	float
`rx_time`	`1774972597` 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`	`36` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774972605.4838533` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9e786d08`
Signal Metrics:	RSSI: -72.0 dBm SNR: 6.25 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": "!d45ab704", "long_name": "DΞLTΔ-MGØ1-CL-8", "short_name": "MG01", "macaddr": "HNvUWrcE", "hw_model": "SEEED_XIAO_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e786d08", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3562714884, "to": 1579599817, "id": 2842222640, "rx_time": 1774972597, "rx_snr": 6.25, "rx_rssi": -72, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 36, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216434356162373034121244ce9e4c54ce942d4d47c398312d434c2d381a044d47303122061cdbd45ab704285138014220c9aad2e02b24dbe605302a69391a16b1da2c11b01c7badd8d8812666166d32564800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!d45ab704", "long_name": "DΞLTΔ-MGØ1-CL-8", "short_name": "MG01", "macaddr": "HNvUWrcE", "hw_model": "SEEED_XIAO_S3", "role": "CLIENT_MUTE", "public_key": "yarS4Csk2+YFMCppORoWsdosEbAce63Y2IEmZhZtMlY=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (85 bytes)

0a09216434356162373034121244ce9e4c54ce942d4d47c398312d434c2d381a044d47303122061cdbd45ab704285138014220c9aad2e02b24dbe605302a69391a16b1da2c11b01c7badd8d8812666166d32564800

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 #3209431 Success

Packet Information

Payload Data

Decoded Data: