Packet #2842835

Database ID:	2842835
Mesh Packet ID:	`0xa33b82d3` Used for correlation across gateways
Timestamp:	2025-08-17 16:35:48 UTC
From Node:	PE1RWP (1RWP)
To Node:	!00000001 (0001)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	PE1RWP (1RWP)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/3 hops Start: 3, Limit: 3

Reporting Node:	PE1RWP (1RWP)
Last Sent By:	PE1RWP (1RWP)
Broadcast Interval:	14400 seconds
Neighbors Found:	3

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
Durkje001 (D001)	5.5 dB	Unknown	Unknown	Excellent
WST Drachten 1 (WST1)	-0.5 dB	Unknown	Unknown	Fair
!e2e382e4 (82e4)	-6.5 dB	Unknown	Unknown	Poor

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:	54 bytes
Gateway:	!433dec18
Channel:	LongFast
Payload Type:	NEIGHBORINFO_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433dec18` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (54 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128131608` Source node ID	uint32
`to`	`1` Target node ID	uint32
`decoded.portnum`	`71` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`54` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` 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`	`1755441347` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755441348.3553317` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!433dec18`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NEIGHBORINFO_APP
Size:	54 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "node_id": 1128131608, "last_sent_by_id": 1128131608, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 1127914256, "snr": 5.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Durkje001 (D001)" }, { "node_id": 1136101868, "snr": -0.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "WST Drachten 1 (WST1)" }, { "node_id": 3806560996, "snr": -6.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "!e2e382e4" } ], "neighbor_count": 3, "node_name": "PE1RWP (1RWP)", "last_sent_by_name": "PE1RWP (1RWP)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433dec18", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128131608, "to": 1, "id": 2738586323, "rx_time": 1755441347, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 71, "payload": "0898d8f799041098d8f7990418c070220b0890b6ea9904150000b040220b08ec93de9d0415000000bf220b08e4858e970e150000d0c0", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "node_id": 1128131608, "last_sent_by_id": 1128131608, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 1127914256, "snr": 5.5 }, { "node_id": 1136101868, "snr": -0.5 }, { "node_id": 3806560996, "snr": -6.5 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } } } }

Raw Packet Data (54 bytes)

0898d8f799041098d8f7990418c070220b0890b6ea9904150000b040220b08ec93de9d0415000000bf220b08e4858e970e150000d0c0

Hex Analysis:

Size:	54 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 #2842835 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

3

Neighbor Details