Packet #498721

Database ID:	498721
Mesh Packet ID:	`0x1337b32a` Used for correlation across gateways
Timestamp:	2026-05-03 21:00:26 UTC
From Node:	Couto-8 (CS1)
To Node:	Meshtastic 2e14 (2e14)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Manu-cl-8 (MARC)
Channel:	LongFast
RSSI:	-111 dBm
SNR:	-16.75 dBm
Hop Info:	1/5 hops Start: 5, Limit: 4
Relay Node:	`a7` SOL1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Node ID:	!db29ac9c
MAC Address:	AAAAAAAA

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:	19 bytes
Gateway:	!5f458b3f
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 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`	`!5f458b3f` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (19 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3676941468` Source node ID	uint32
`to`	`67644948` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`19` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-111.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.75` dB Signal quality at gateway	float
`rx_time`	`1777842026` 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`	`167` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!5f458b3f`
Signal Metrics:	RSSI: -111.0 dBm SNR: -16.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	19 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!db29ac9c", "long_name": null, "short_name": null, "macaddr": "AAAAAAAA", "hw_model": null }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3676941468, "to": 67644948, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGIyOWFjOWMiBgAAAAAAAA==", "want_response": true, "bitfield": 3 }, "id": 322417450, "rx_time": 1777842026, "rx_snr": -16.75, "hop_limit": 4, "rx_rssi": -111, "hop_start": 5, "relay_node": 167, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!5f458b3f" }, "mesh_packet": { "from": 3676941468, "to": 67644948, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGIyOWFjOWMiBgAAAAAAAA==", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!db29ac9c", "macaddr": "AAAAAAAA", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 322417450, "rx_time": 1777842026, "rx_snr": -16.75, "hop_limit": 4, "rx_rssi": -111, "hop_start": 5, "relay_node": 167, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (19 bytes)

0a092164623239616339632206000000000000

Hex Analysis:

Size:	19 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 #498721 Success

Packet Information

Payload Data

Decoded Data: