Packet #263178

Database ID:	263178
Mesh Packet ID:	`0xc9fe2e99` Used for correlation across gateways
Timestamp:	2026-04-05 09:06:25 UTC
From Node:	136FA UPL (136U)
To Node:	!00000001 (0001)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	136FA UPL (136U)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`7c` 136U Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Reporting Node:	136FA UPL (136U)
Last Sent By:	136FA UPL (136U)
Broadcast Interval:	55555 seconds
Neighbors Found:	5

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
136F 1WT (136W)	7.2 dB	Unknown	Unknown	Excellent
Kirtland1-Skynet2 (KIRT)	-17.5 dB	Unknown	Unknown	Poor
136F TB1W (136B)	6.2 dB	Unknown	Unknown	Excellent
Painesville-1-Skynet-1 (PVL1)	-18.2 dB	Unknown	Unknown	Poor
136FA3 (136C)	7.5 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:	81 bytes
Gateway:	!acaad57c
Channel:	LongFast
Payload Type:	NEIGHBORINFO_APP
Hop Count:	0 / 7

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

Field	Value
`gateway_id`	`!acaad57c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (81 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2896876924` Source node ID	uint32
`to`	`1` Target node ID	uint32
`decoded.portnum`	`NEIGHBORINFO_APP` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`81` bytes	size
`hop_limit`	`7` Remaining hops allowed	uint32
`hop_start`	`7` 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`	`1775379984` 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`	`8` Channel index	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
✓ 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:	`!acaad57c`
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:	81 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "node_id": 2896876924, "last_sent_by_id": 2896876924, "node_broadcast_interval_secs": 55555, "neighbors": [ { "node_id": 461262805, "snr": 7.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "136F 1WT (136W)" }, { "node_id": 2596603480, "snr": -17.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Kirtland1-Skynet2 (KIRT)" }, { "node_id": 4054302288, "snr": 6.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "136F TB1W (136B)" }, { "node_id": 3896974880, "snr": -18.25, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Painesville-1-Skynet-1 (PVL1)" }, { "node_id": 4256672645, "snr": 7.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "136FA3 (136C)" } ], "neighbor_count": 5, "node_name": "136FA UPL (136U)", "last_sent_by_name": "136FA UPL (136U)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2896876924, "to": 1, "channel": 8, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CPyqq+UKEPyqq+UKGIOyAyILCNWf+dsBFQAA6EAiCwjYjJTWCRUAAIzBIgsI0PyejQ8VAADIQCILCKC8nMIOFQAAksEiCwiF197tDxUAAPBA", "bitfield": 1 }, "id": 3388878489, "rx_time": 1775379984, "hop_limit": 7, "priority": "BACKGROUND", "hop_start": 7, "relay_node": 124 }, "channel_id": "LongFast", "gateway_id": "!acaad57c" }, "mesh_packet": { "from": 2896876924, "to": 1, "channel": 8, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CPyqq+UKEPyqq+UKGIOyAyILCNWf+dsBFQAA6EAiCwjYjJTWCRUAAIzBIgsI0PyejQ8VAADIQCILCKC8nMIOFQAAksEiCwiF197tDxUAAPBA", "bitfield": 1, "parsed_payload": { "node_id": 2896876924, "last_sent_by_id": 2896876924, "node_broadcast_interval_secs": 55555, "neighbors": [ { "node_id": 461262805, "snr": 7.25 }, { "node_id": 2596603480, "snr": -17.5 }, { "node_id": 4054302288, "snr": 6.25 }, { "node_id": 3896974880, "snr": -18.25 }, { "node_id": 4256672645, "snr": 7.5 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } }, "id": 3388878489, "rx_time": 1775379984, "hop_limit": 7, "priority": "BACKGROUND", "hop_start": 7, "relay_node": 124 } }

Raw Packet Data (81 bytes)

08fcaaabe50a10fcaaabe50a1883b203220b08d59ff9db01150000e840220b08d88c94d6091500008cc1220b08d0fc9e8d0f150000c840220b08a0bc9cc20e15000092c1220b0885d7deed0f150000f040

Hex Analysis:

Size:	81 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 #263178 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

5

Neighbor Details