Packet #17884739

Database ID:	17884739
Mesh Packet ID:	`0x240cdc58` Used for correlation across gateways
Timestamp:	2026-05-30 14:30:27 UTC
From Node:	ZGR🍋‍🟩 5638 (ZGR)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	Zoͦmͫвⷡiͥeͤ [GW8] (🧟)
Channel:	MediumFast
RSSI:	-105 dBm
SNR:	-10.25 dBm
Hop Info:	6/7 hops Start: 7, Limit: 1

Reporting Node:	ZGR🍋‍🟩 5638 (ZGR)
Last Sent By:	Meshtastic 6914 (6914)
Broadcast Interval:	14400 seconds
Neighbors Found:	3

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
50_BMG (50)	-12.0 dB	Unknown	Unknown	Poor
Belka.Opalikha.KGS (belk)	-9.0 dB	Unknown	Unknown	Poor
INET (98a0)	-14.8 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:	53 bytes
Gateway:	!deadc0de
Channel:	MediumFast
Payload Type:	NEIGHBORINFO_APP
Hop Count:	6 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!deadc0de` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (53 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`252991032` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`71` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`53` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-105.0` dBm Signal strength at gateway	int32
`rx_snr`	`-10.25` dB Signal quality at gateway	float
`rx_time`	`1780140627` 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`	`20` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1780140627.4002693` Unix timestamp	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)
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (6 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!deadc0de`
Signal Metrics:	RSSI: -105.0 dBm SNR: -10.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NEIGHBORINFO_APP
Size:	53 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "node_id": 252991032, "last_sent_by_id": 1770350868, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 3679549540, "snr": -12.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "50_BMG (50)" }, { "node_id": 3680430944, "snr": -9.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Belka.Opalikha.KGS (belk)" }, { "node_id": 1770363040, "snr": -14.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "INET" } ], "neighbor_count": 3, "node_name": "ZGR🍋‍🟩 5638 (ZGR)", "last_sent_by_name": "Meshtastic 6914 (6914)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!deadc0de", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 252991032, "to": 4294967295, "id": 604822616, "rx_time": 1780140627, "rx_snr": -10.25, "rx_rssi": -105, "hop_limit": 1, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 20, "tx_after": 0, "decoded": { "portnum": 71, "payload": "08b8acd1781094d295cc0618c070220b08e4f0c5da0d15000040c1220b08e0d6fbda0d15000010c1220b08a0b196cc061500006cc1", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "node_id": 252991032, "last_sent_by_id": 1770350868, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 3679549540, "snr": -12.0 }, { "node_id": 3680430944, "snr": -9.0 }, { "node_id": 1770363040, "snr": -14.75 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } } } }

Raw Packet Data (53 bytes)

08b8acd1781094d295cc0618c070220b08e4f0c5da0d15000040c1220b08e0d6fbda0d15000010c1220b08a0b196cc061500006cc1

Hex Analysis:

Size:	53 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 #17884739 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

3

Neighbor Details