Packet #510467

Database ID:	510467
Mesh Packet ID:	`0xf11954cc` Used for correlation across gateways
Timestamp:	2026-03-09 15:36:48 UTC
From Node:	Meshtastic 71b8 (71b8)
To Node:	!00000001 (0001)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	Meshtastic 71b8 (71b8)
Channel:	chat.cap.ru
RSSI:	Unknown
SNR:	Unknown
Hop Info:	7/7 hops Start: 7, Limit: 0
Relay Node:	`b8` Last byte of the last hop that relayed this packet

Reporting Node:	Meshtastic 71b8 (71b8)
Last Sent By:	Meshtastic 71b8 (71b8)
Broadcast Interval:	14400 seconds
Neighbors Found:	2

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
Meshtastic 6de0 (6de0)	7.5 dB	Unknown	Unknown	Excellent
Meshtastic 5a10 (5a10)	7.0 dB	Unknown	Unknown	Excellent

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:	41 bytes
Gateway:	!9e7871b8
Channel:	chat.cap.ru
Payload Type:	NEIGHBORINFO_APP
Hop Count:	7 / 7

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 (7 hops)

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!9e7871b8` Node ID format
`channel_id`	`chat.cap.ru`
`packet`	`MeshPacket` (41 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2658693560` Source node ID	uint32
`to`	`1` Target node ID	uint32
`decoded.portnum`	`NEIGHBORINFO_APP` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`41` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1773070591` 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`	`105` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`184` 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: chat.cap.ru
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)

MQTT-Specific Fields

Gateway ID: !9e7871b8

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NEIGHBORINFO_APP
Size:	41 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "node_id": 2658693560, "last_sent_by_id": 2658693560, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2658692576, "snr": 7.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Meshtastic 6de0 (6de0)" }, { "node_id": 1375492624, "snr": 7.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Meshtastic 5a10 (5a10)" } ], "neighbor_count": 2, "node_name": "Meshtastic 71b8 (71b8)", "last_sent_by_name": "Meshtastic 71b8 (71b8)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2658693560, "to": 1, "channel": 105, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CLjj4fMJELjj4fMJGMBwIgsI4Nvh8wkVAADwQCILCJC08Y8FFQAA4EA=", "bitfield": 0 }, "id": 4044969164, "rx_time": 1773070591, "priority": "BACKGROUND", "hop_start": 7, "relay_node": 184 }, "channel_id": "chat.cap.ru", "gateway_id": "!9e7871b8" }, "mesh_packet": { "from": 2658693560, "to": 1, "channel": 105, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CLjj4fMJELjj4fMJGMBwIgsI4Nvh8wkVAADwQCILCJC08Y8FFQAA4EA=", "bitfield": 0, "parsed_payload": { "node_id": 2658693560, "last_sent_by_id": 2658693560, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2658692576, "snr": 7.5 }, { "node_id": 1375492624, "snr": 7.0 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } }, "id": 4044969164, "rx_time": 1773070591, "priority": "BACKGROUND", "hop_start": 7, "relay_node": 184 } }

Raw Packet Data (41 bytes)

08b8e3e1f30910b8e3e1f30918c070220b08e0dbe1f309150000f040220b0890b4f18f05150000e040

Hex Analysis:

Size:	41 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 #510467 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

2

Neighbor Details