Packet #1491987

Database ID:	1491987
Mesh Packet ID:	`0xaf625fa0` Used for correlation across gateways
Timestamp:	2026-05-26 11:52:22 UTC
From Node:	KR4CCZ MeshDeck (KRMD)
To Node:	!91eeb71e (b71e)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Six Feet Over - MF (SFO)
Channel:	MediumFast
RSSI:	-113 dBm
SNR:	-10.0 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3
Relay Node:	`b5` FIVE Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	KR4CCZ MeshDeck
Short Name:	KRMD
Node ID:	!01090d8f
MAC Address:	5F8BCQ2P
Hardware:	PORTDUINO

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:	80 bytes
Gateway:	!db2b13f8
Channel:	MediumFast
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
+ 2 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!db2b13f8` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`17370511` Source node ID	uint32
`to`	`2448340766` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` 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`	`-113.0` dBm Signal strength at gateway	int32
`rx_snr`	`-10.00` dB Signal quality at gateway	float
`rx_time`	`1779796340` 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`	`181` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1779796342.0077944` 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
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!db2b13f8`
Signal Metrics:	RSSI: -113.0 dBm SNR: -10.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!01090d8f", "long_name": "KR4CCZ MeshDeck", "short_name": "KRMD", "macaddr": "5F8BCQ2P", "hw_model": "PORTDUINO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!db2b13f8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 17370511, "to": 2448340766, "id": 2942459808, "rx_time": 1779796340, "rx_snr": -10.0, "rx_rssi": -113, "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": 181, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213031303930643866120f4b523443435a204d6573684465636b1a044b524d442206e45f01090d8f28254220fedb7b9fe9541d67b337588dd638d42d8133cef99aedac4d300e5568e4ba86134800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!01090d8f", "long_name": "KR4CCZ MeshDeck", "short_name": "KRMD", "macaddr": "5F8BCQ2P", "hw_model": "PORTDUINO", "public_key": "/tt7n+lUHWezN1iN1jjULYEzzvma7axNMA5VaOS6hhM=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213031303930643866120f4b523443435a204d6573684465636b1a044b524d442206e45f01090d8f28254220fedb7b9fe9541d67b337588dd638d42d8133cef99aedac4d300e5568e4ba86134800

Hex Analysis:

Size:	80 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 #1491987 Success

Packet Information

Payload Data

Decoded Data: