Packet #589 - Malla

Database ID:	589
Mesh Packet ID:	`0x5171ff4c` Used for correlation across gateways
Timestamp:	2026-04-03 13:33:16 UTC
From Node:	DΞLTΔ-MGØ1-CL-8 (MG01)
To Node:	!de09fe73 (fe73)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	RDPP-R01-GW-8🇵🇹 (RDPP)
Channel:	LongFast
RSSI:	-87 dBm
SNR:	-16.75 dBm
Hop Info:	4/5 hops Start: 5, Limit: 1
Relay Node:	`c8` Gigs Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

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:	!b03bb298
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	4 / 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

Field	Value
`gateway_id`	`!b03bb298` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (85 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3562714884` Source node ID	uint32
`to`	`3725196915` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`85` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-87.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.75` dB Signal quality at gateway	float
`rx_time`	`1775223195` 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`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`200` Relay node ID	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 (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b03bb298`
Signal Metrics:	RSSI: -87.0 dBm SNR: -16.75 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": { "packet": { "from": 3562714884, "to": 3725196915, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZDQ1YWI3MDQSEkTOnkxUzpQtTUfDmDEtQ0wtOBoETUcwMSIGHNvUWrcEKFE4AUIgyarS4Csk2+YFMCppORoWsdosEbAce63Y2IEmZhZtMlZIAA==", "want_response": true, "bitfield": 3 }, "id": 1366425420, "rx_time": 1775223195, "rx_snr": -16.75, "hop_limit": 1, "rx_rssi": -87, "hop_start": 5, "relay_node": 200 }, "channel_id": "LongFast", "gateway_id": "!b03bb298" }, "mesh_packet": { "from": 3562714884, "to": 3725196915, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZDQ1YWI3MDQSEkTOnkxUzpQtTUfDmDEtQ0wtOBoETUcwMSIGHNvUWrcEKFE4AUIgyarS4Csk2+YFMCppORoWsdosEbAce63Y2IEmZhZtMlZIAA==", "want_response": true, "bitfield": 3, "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" } }, "id": 1366425420, "rx_time": 1775223195, "rx_snr": -16.75, "hop_limit": 1, "rx_rssi": -87, "hop_start": 5, "relay_node": 200 } }

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 #589 Success

Packet Information

Payload Data

Decoded Data: