Packet #671339

Database ID:	671339
Mesh Packet ID:	`0xfdcac942` Used for correlation across gateways
Timestamp:	2026-05-16 06:05:03 UTC
From Node:	IT voodoo 🏴‍☠️ (6e8f)
To Node:	!00000001 (0001)
Success:	Processed
Protocol:	NEIGHBORINFO_APP Port: 71

Gateway:	IT voodoo 🏴‍☠️ (6e8f)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/0 hops Start: 0, Limit: 0
Relay Node:	`8f` 6e8f Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Reporting Node:	IT voodoo 🏴‍☠️ (6e8f)
Last Sent By:	IT voodoo 🏴‍☠️ (6e8f)
Broadcast Interval:	14400 seconds
Neighbors Found:	3

Neighbor Node	SNR	Last Heard	Broadcast Interval	Signal Quality
!9388ee50 (ee50)	-13.5 dB	Unknown	Unknown	Poor
Bella ciao (ce8d)	10.8 dB	Unknown	Unknown	Excellent
018-R01-GT-8 🗼 (FLVN)	-5.0 dB	Unknown	Unknown	Fair

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:	!f4b26e8f
Channel:	LongFast
Payload Type:	NEIGHBORINFO_APP
Hop Count:	0 / 0

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`	`!f4b26e8f` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (54 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`4105334415` Source node ID	uint32
`to`	`1` Target node ID	uint32
`decoded.portnum`	`NEIGHBORINFO_APP` NEIGHBORINFO_APP	enum
`decoded.payload_length`	`54` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	Not set	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1778911504` 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`	`143` 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:	`!f4b26e8f`
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": 4105334415, "last_sent_by_id": 4105334415, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2475224656, "snr": -13.5, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "!9388ee50" }, { "node_id": 1920323213, "snr": 10.75, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "Bella ciao (ce8d)" }, { "node_id": 2654029321, "snr": -5.0, "last_rx_time": null, "node_broadcast_interval_secs": null, "last_rx_time_str": "Unknown", "node_name": "018-R01-GT-8 🗼 (FLVN)" } ], "neighbor_count": 3, "node_name": "IT voodoo 🏴‍☠️ (6e8f)", "last_sent_by_name": "IT voodoo 🏴‍☠️ (6e8f)" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 4105334415, "to": 1, "channel": 8, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CI/dyaUPEI/dyaUPGMBwIgsI0NyjnAkVAABYwSILCI2d15MHFQAALEEiCwiJjMXxCRUAAKDA", "bitfield": 1 }, "id": 4257925442, "rx_time": 1778911504, "priority": "BACKGROUND", "relay_node": 143 }, "channel_id": "LongFast", "gateway_id": "!f4b26e8f" }, "mesh_packet": { "from": 4105334415, "to": 1, "channel": 8, "decoded": { "portnum": "NEIGHBORINFO_APP", "payload": "CI/dyaUPEI/dyaUPGMBwIgsI0NyjnAkVAABYwSILCI2d15MHFQAALEEiCwiJjMXxCRUAAKDA", "bitfield": 1, "parsed_payload": { "node_id": 4105334415, "last_sent_by_id": 4105334415, "node_broadcast_interval_secs": 14400, "neighbors": [ { "node_id": 2475224656, "snr": -13.5 }, { "node_id": 1920323213, "snr": 10.75 }, { "node_id": 2654029321, "snr": -5.0 } ], "type": "protobuf", "portnum": "NEIGHBORINFO_APP", "message_class": "NeighborInfo" } }, "id": 4257925442, "rx_time": 1778911504, "priority": "BACKGROUND", "relay_node": 143 } }

Raw Packet Data (54 bytes)

088fddc9a50f108fddc9a50f18c070220b08d0dca39c0915000058c1220b088d9dd793071500002c41220b08898cc5f109150000a0c0

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 #671339 Success

Packet Information

Payload Data

Decoded Data:

Neighbor Information Report

3

Neighbor Details