Packet #2878780

Database ID:	2878780
Mesh Packet ID:	`0x3122416c` Used for correlation across gateways
Timestamp:	2026-06-21 16:41:34 UTC
From Node:	LoNar (lnr)
To Node:	!00000001 (0001)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	LoNar (lnr)
Channel:	ShortFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`7c` lnr Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Reporting Node:	LoNar (lnr)
Last Sent By:	LoNar (lnr)
Broadcast Interval:	14400 seconds
Neighbors Found:	4

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
RADO PONORIA (RADO)	12.5 dB	Unknown	Unknown	Excellent
Bin Sun ☀️ (BSR)	-4.5 dB	Unknown	Unknown	Fair
Telegraph Hill (🗼)	-5.2 dB	Unknown	Unknown	Poor
GW Nadejda SF 🇧🇬🏢🛰️ (SFGN)	-6.8 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:	67 bytes
Gateway:	!1dd2a07c
Channel:	ShortFast
Payload Type:	NEIGHBORINFO_APP
Hop Count:	0 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!1dd2a07c` Node ID format
`channel_id`	`ShortFast`
`packet`	`MeshPacket` (67 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`500342908` Source node ID	uint32
`to`	`1` Target node ID	uint32
`decoded.portnum`	`NEIGHBORINFO_APP` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`67` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` 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`	`1782060095` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` 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`	`124` 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
✓ Custom channel: ShortFast
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!1dd2a07c`
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:	67 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "node_id": 500342908, "last_sent_by_id": 500342908, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2455534031, "snr": 12.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "RADO PONORIA (RADO)" }, { "node_id": 2386514419, "snr": -4.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Bin Sun ☀️ (BSR)" }, { "node_id": 4134132836, "snr": -5.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Telegraph Hill (🗼)" }, { "node_id": 2661322504, "snr": -6.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "GW Nadejda SF 🇧🇬🏢🛰️ (SFGN)" } ], "neighbor_count": 4, "node_name": "LoNar (lnr)", "last_sent_by_name": "LoNar (lnr)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 500342908, "to": 1, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CPzAyu4BEPzAyu4BGMBwIgsIz/PxkgkVAABIQSILCPOj/fEIFQAAkMAiCwjkuKezDxUAAKjAIgsIiJ6C9QkVAADYwA==" }, "id": 824328556, "rx_time": 1782060095, "hop_limit": 2, "priority": "BACKGROUND", "hop_start": 2, "relay_node": 124 }, "channel_id": "ShortFast", "gateway_id": "!1dd2a07c" }, "mesh_packet": { "from": 500342908, "to": 1, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CPzAyu4BEPzAyu4BGMBwIgsIz/PxkgkVAABIQSILCPOj/fEIFQAAkMAiCwjkuKezDxUAAKjAIgsIiJ6C9QkVAADYwA==", "parsed_payload": { "node_id": 500342908, "last_sent_by_id": 500342908, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2455534031, "snr": 12.5 }, { "node_id": 2386514419, "snr": -4.5 }, { "node_id": 4134132836, "snr": -5.25 }, { "node_id": 2661322504, "snr": -6.75 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } }, "id": 824328556, "rx_time": 1782060095, "hop_limit": 2, "priority": "BACKGROUND", "hop_start": 2, "relay_node": 124 } }

Raw Packet Data (67 bytes)

08fcc0caee0110fcc0caee0118c070220b08cff3f192091500004841220b08f3a3fdf10815000090c0220b08e4b8a7b30f150000a8c0220b08889e82f509150000d8c0

Hex Analysis:

Size:	67 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 #2878780 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

4

Neighbor Details