Packet #3390548

Database ID:	3390548
Mesh Packet ID:	`0x12034981` Used for correlation across gateways
Timestamp:	2026-05-18 21:16:50 UTC
From Node:	Phantom 01 (JD90)
To Node:	Summit Base (SUMT)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	111 Roberts St (111R)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-5.75 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`b4` JD90 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Phantom 01
Short Name:	JD90
Node ID:	!6984b7b4
MAC Address:	kHBphLe0
Hardware:	HELTEC_V4

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:	75 bytes
Gateway:	!435692d4
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	0 / 3

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
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!435692d4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`1770305460` Source node ID	uint32
`to`	`1236687464` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-5.75` dB Signal quality at gateway	float
`rx_time`	`1779139009` 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`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`180` 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
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!435692d4`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -110.0 dBm SNR: -5.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!6984b7b4", "long_name": "Phantom 01", "short_name": "JD90", "macaddr": "kHBphLe0", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 1770305460, "to": 1236687464, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNjk4NGI3YjQSClBoYW50b20gMDEaBEpEOTAiBpBwaYS3tChuQiDgiV3E3lSov/H55oF8ZVAvq28I1GM9rWgfeD2zI7uGSUgA", "want_response": true, "bitfield": 3 }, "id": 302205313, "rx_time": 1779139009, "rx_snr": -5.75, "hop_limit": 3, "rx_rssi": -110, "hop_start": 3, "relay_node": 180 }, "channel_id": "LongFast", "gateway_id": "!435692d4" }, "mesh_packet": { "from": 1770305460, "to": 1236687464, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNjk4NGI3YjQSClBoYW50b20gMDEaBEpEOTAiBpBwaYS3tChuQiDgiV3E3lSov/H55oF8ZVAvq28I1GM9rWgfeD2zI7uGSUgA", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!6984b7b4", "long_name": "Phantom 01", "short_name": "JD90", "macaddr": "kHBphLe0", "hw_model": "HELTEC_V4", "public_key": "4IldxN5UqL/x+eaBfGVQL6tvCNRjPa1oH3g9syO7hkk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 302205313, "rx_time": 1779139009, "rx_snr": -5.75, "hop_limit": 3, "rx_rssi": -110, "hop_start": 3, "relay_node": 180 } }

Raw Packet Data (75 bytes)

0a09213639383462376234120a5068616e746f6d2030311a044a443930220690706984b7b4286e4220e0895dc4de54a8bff1f9e6817c65502fab6f08d4633dad681f783db323bb86494800

Hex Analysis:

Size:	75 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 #3390548 Success

Packet Information

Payload Data

Decoded Data: