Packet #570 - Malla

Packet Information

Database ID:	570
Mesh Packet ID:	`0xe13f84d9` Used for correlation across gateways
Timestamp:	2026-04-03 13:32:09 UTC
From Node:	NPK-PuddleJumper-8 (🚀)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	NPK-PuddleJumper-8 (🚀)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/4 hops Start: 4, Limit: 4
Relay Node:	`31` 🚀 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 4 bytes

Decoded: Yes

Text Content:

👋

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:	4 bytes
Gateway:	!7c206a31
Channel:	LongFast
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	0 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!7c206a31` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (4 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2082499121` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`TEXT_MESSAGE_APP` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`4` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1775223129` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`HIGH` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`49` 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: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!7c206a31`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2082499121, "to": 4294967295, "channel": 8, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "8J+Riw==", "reply_id": 44106861, "emoji": 1, "bitfield": 1 }, "id": 3779036377, "rx_time": 1775223129, "hop_limit": 4, "priority": "HIGH", "hop_start": 4, "relay_node": 49 }, "channel_id": "LongFast", "gateway_id": "!7c206a31" }, "mesh_packet": { "from": 2082499121, "to": 4294967295, "channel": 8, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "8J+Riw==", "reply_id": 44106861, "emoji": 1, "bitfield": 1, "parsed_payload": { "text": "👋", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } }, "id": 3779036377, "rx_time": 1775223129, "hop_limit": 4, "priority": "HIGH", "hop_start": 4, "relay_node": 49 } }

Raw Packet Data (4 bytes)

f09f918b

Hex Analysis:

Size:	4 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.

All Receptions

All gateways that received this packet
Correlation: Using Mesh Packet ID

Gateway	Time Offset	RSSI	SNR	Hops	Relay	Channel	Timestamp	Actions
NPK-PuddleJumper-8 (🚀) Primary	0.000s Reference	Unknown	Unknown	0	`31` 🚀	LongFast	2026-04-03 13:32:09 UTC	Current
No other receptions found within ±2 seconds

1

Total Receptions

1

Unique Gateways

Packet #570 Success