﻿---
title: Packetbeat doesn't see any packets when using mirror ports
description: The interface needs to be set to promiscuous mode. Run the following command: For example: ip link set enp5s0f1 promisc on 
url: https://www.elastic.co/elastic/docs-builder/docs/2261/reference/beats/packetbeat/packetbeat-mirror-ports
products:
  - Beats
  - Packetbeat
applies_to:
  - Elastic Stack: Generally available in 9.0+
---

# Packetbeat doesn't see any packets when using mirror ports
The interface needs to be set to promiscuous mode. Run the following command:
```sh
ip link set <device_name> promisc on
```

For example: `ip link set enp5s0f1 promisc on`