> For the complete documentation index, see [llms.txt](https://platform9.com/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://platform9.com/kb/pmo/how-to/assign-specific-mac-to-instance.md).

# Assign Specific MAC to Instance

## Problem

Assign a specific MAC address to a port and attach it to an instance.

## Environment

* Platform9 Managed OpenStack - All Versions

## Procedure

1. Create a port with a fixed IP and MAC address using the following CLI command.

{% tabs %}
{% tab title="None" %}

```none
# openstack port create --network=[Network UUID] --fixed-ip subnet=[Subnet UUID],ip-address=10.128.228.24 --mac-address=fa:16:3e:aa:bb:cc [port_name]
```

{% endtab %}
{% endtabs %}

2. Create a server using and attach the created port to it using the following command.

{% tabs %}
{% tab title="None" %}

```none
# openstack server create --image [image UUID] --flavor 1 --port [port UUID] [instance-name]
```

{% endtab %}
{% endtabs %}


---

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