---
title: MAC Address Issues for Docker Containers
slug: litmusedge-v1/marketplace-troubleshooting/mac-address-issues-with-docker-containers
description: Review troubleshooting information related to issues with the MAC address when recreating Litmus Edge Docker containers. 
docTags: 
createdAt: 2024-06-03T14:39:33.317Z
---

Docker engine will generate a new MAC address each time a container is created. If you install Litmus Edge in Docker, the license depends on the MAC address. If the container is recreated and gets a new MAC address, the license will not work.

# Solution

If you need to re-install Litmus Edge, don't delete the original container. Instead, stop it using the command: `docker stop <container name or id>`. Then, continue installing the new container.&#x20;

If the original container is deleted, see the steps below to configure the new container with the same MAC address.&#x20;

## Step 1: Run Docker Container

In the command below, Docker Alpine is used.&#x20;

:::BlockQuote
docker run --name=alpine -dit alpine /bin/ash
:::

Review the following descriptions of the parameters in the command.&#x20;

- **--name:** container name
- **-d:&#x20;**&#x52;un container in background and print container ID
- **-i:&#x20;**&#x4B;eep STDIN open even if not attached
- **-t:&#x20;**&#x41;llocate a pseudo-TTY
- **alpine:&#x20;**&#x61;lpine linux distribution
- **/bin/bash:&#x20;**&#x72;un bash on container

Learn more about [docker container run](https://docs.docker.com/reference/cli/docker/container/run/).&#x20;

## Step 2: Get MAC Address of Container

Use the following command to view and copy the MAC address of the container.&#x20;

:::BlockQuote
docker inspect alpine |grep MacAddress|tr -d ' ,"'|sort -u
:::

If you get this error from above command: `'grep' is not recognized as an internal or external command`, use the command below:

:::BlockQuote
docker inspect -f '&#x7B;&#x7B;.NetworkSettings.MacAddress}}' alpine
:::

Expect an output like this: `MacAddress:02:42:0a:1e:32:02`

Copy the MAC address part `02:42:0a:1e:32:02`

## Step 3: Recreate Container

Use the following command to recreate the Litmus Edge container. Replace the MAC address with your specific address information.&#x20;

The use of the option `--mac-address` is to specify the old mac address.

:::BlockQuote
docker run --name=alpine -dit --mac-address 02:42:0a:1e:32:02 alpine /bin/ash
:::

## Step 4: Verify MAC Address

Use the command in Step 2 to verify that the correct MAC address is being used by the new container.&#x20;