Packet #16756088

Database ID:	16756088
Mesh Packet ID:	`0x85652ccc` Used for correlation across gateways
Timestamp:	2026-05-04 23:21:38 UTC
From Node:	Don Hulio (1288)
To Node:	Maksim5k (88bc)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Medved GW8 (MED8)
Channel:	MediumFast
RSSI:	-111 dBm
SNR:	-5.0 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Long Name:	Don Hulio
Short Name:	1288
Node ID:	!1ba11288
MAC Address:	AAAAAAAA
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:	74 bytes
Gateway:	!fa68e0c0
Channel:	MediumFast
Payload Type:	NODEINFO_APP
Hop Count:	7 / 7

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!fa68e0c0` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`463540872` Source node ID	uint32
`to`	`463636668` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` 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`	`-111.0` dBm Signal strength at gateway	int32
`rx_snr`	`-5.00` dB Signal quality at gateway	float
`rx_time`	`1777679174` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	True Acknowledgment 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`	`200` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1777926098.6016037` Unix timestamp	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)
✓ Acknowledgment requested
✓ Targeted to specific node
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Want ack:	`True`
Gateway ID:	`!fa68e0c0`
Signal Metrics:	RSSI: -111.0 dBm SNR: -5.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!1ba11288", "long_name": "Don Hulio", "short_name": "1288", "macaddr": "AAAAAAAA", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!fa68e0c0", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 463540872, "to": 463636668, "id": 2238000332, "rx_time": 1777679174, "rx_snr": -5.0, "rx_rssi": -111, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 200, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092131626131313238381209446f6e2048756c696f1a04313238382206000000000000286e38014220877998ded5f133a6036eca67ce296d990704cf25944a8dc5d52e400b7fe57c7c", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!1ba11288", "long_name": "Don Hulio", "short_name": "1288", "macaddr": "AAAAAAAA", "hw_model": "HELTEC_V4", "role": "CLIENT_MUTE", "public_key": "h3mY3tXxM6YDbspnziltmQcEzyWUSo3F1S5AC3/lfHw=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a092131626131313238381209446f6e2048756c696f1a04313238382206000000000000286e38014220877998ded5f133a6036eca67ce296d990704cf25944a8dc5d52e400b7fe57c7c

Hex Analysis:

Size:	74 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 #16756088 Success

Packet Information

Payload Data

Decoded Data: