# How do I disable IPv6?

You cannot disable a Droplet’s IPv6 interface using the [DigitalOcean Control Panel](https://cloud.digitalocean.com) after the Droplet has been activated. However, you can disable it by making changes to its network interface configuration.

Alternatively, you can also block all IPv6 traffic to the Droplet using a [cloud firewall rule](https://docs.digitalocean.com/products/networking/firewalls/how-to/create/index.html.md).

## Prerequisites

Altering network configurations can cause you to lose access to your Droplet or other problems. We recommend [taking a snapshot of the Droplet](https://docs.digitalocean.com/products/snapshots/how-to/snapshot-droplets/index.html.md) before making any changes to its network configuration. You can use the snapshot to [rebuild the Droplet](https://docs.digitalocean.com/products/snapshots/how-to/create-and-restore-droplets/index.html.md) to the state it was in at the time when you took the snapshot.

## Update Network Interface

Select your Droplet’s OS from the tabs below and follow the instructions to disable its IPv6 address.

## Ubuntu and Debian

To disable the IPv6 address for your Ubuntu or Debian Droplet, open the `/etc/netplan/50-cloud-init.yaml` file using `nano` or your preferred text editor:

```shell
nano /etc/netplan/50-cloud-init.yaml
```

The `50-cloud-init.yaml` file contains all of the configuration information for the Droplet’s network interfaces. Comment out the Droplet’s IPv6 address in the `addresses` field of the `eth0` interface:

`/etc/netplan/50-cloud-init`

```shell
network:
    version: 2
    ethernets:
        eth0:
            accept-ra: false
            addresses:
#            - 2001:DB8:1:1::7/64
            - 203.0.113.7/24
            - 198.51.100.12/24
```

Next, run the following command to apply the updated configuration.

```shell
netplan apply
```

## Fedora

To disable the IPv6 address for your Fedora Droplet, open the `/etc/NetworkManager/system-connections/cloud-init-eth0.nmconnection` file using `vi` or your preferred text editor:

```shell
vi /etc/NetworkManager/system-connections/cloud-init-eth0.nmconnection
```

**Note**:

  `vi` opens files in a read-only mode by default. To edit a file in `vi`, switch to insert mode by pressing the `i` key.

  Once you are done editing the file, press the `Esc` key to exit insert mode. Then type `:wq` and press `Enter` to save and quit the file.

The `cloud-init-eth0.nmconnection` file contains all of the configuration information for the Droplet’s `eth0` network interface. Under the `[ipv6]` section, comment out the `address1` and `route1` fields in the file, as shown below:

`/etc/NetworkManager/system-connections/cloud-init-eth0.nmconnection`

```shell
[ipv6]
method=auto
may-fail=true
# address1=2001:DB8:1:1::7/64
# route1=::/0,2001:DB8:1:1::1
```

## CentOS, AlmaLinux, and Rocky Linux

To disable the IPv6 address for your CentOS Droplet, open the `/etc/sysconfig/network-scripts/ifcfg-eth0` file using `vi` or your preferred text editor:

```shell
vi /etc/sysconfig/network-scripts/ifcfg-eth0
```

**Note**:

  `vi` opens files in a read-only mode by default. To edit a file in `vi`, switch to insert mode by pressing the `i` key.

  Once you are done editing the file, press the `Esc` key to exit insert mode. Then type `:wq` and press `Enter` to save and quit the file.

The `/etc/sysconfig/network-scripts/ifcfg-eth0` file contains all of the configuration information for the Droplet’s `eth0` network interface. Comment out the `IPV6ADDR` field containing the Droplet’s IPv6 address, as shown below:

`/etc/sysconfig/network-scripts/ifcfg-eth0`

```shell
AUTOCONNECT_PRIORITY=120
BOOTPROTO=none
DEFROUTE=yes
DEVICE=eth0
GATEWAY=203.0.113.1
HWADDR=6a:b0:bc:ae:73:1c
IPADDR=203.0.113.7
IPADDR1=198.51.100.11
# IPV6ADDR=2001:DB8:1:1::7/64
IPV6INIT=yes
IPV6_AUTOCONF=no
IPV6_DEFAULTGW=2001:DB8:1:1::1
IPV6_FORCE_ACCEPT_RA=no
MTU=1500
NETMASK=255.255.255.0
NETMASK1=255.255.255.0
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
```

After disabling IPv6, save the file and close it. To implement the changes, reboot the Droplet:

```shell
reboot
```

Log back into your Droplet to ensure the Droplet has restarted successfully and is accessible.

Then, run the following command from another machine, such as your local machine’s terminal, to confirm that IPv6 address is not responding.

```shell
ping6 <your-droplet-ipv6-address>
```

## Related Topics

[How do I debug a firewall causing connection problems with my Droplet?](https://docs.digitalocean.com/support/how-do-i-debug-a-firewall-causing-connection-problems-with-my-droplet/index.html.md): Diagnose and troubleshoot firewall issues that could be causing network connectivity issues.

[My firewalls are not working correctly](https://docs.digitalocean.com/support/my-firewalls-are-not-working-correctly/index.html.md): Use this guide to gather information about your firewalls and diagnose problems.

[How do I debug my Droplet's network configuration?](https://docs.digitalocean.com/support/how-do-i-debug-my-droplets-network-configuration/index.html.md): To debug your network configuration, verify the Droplet’s network interfaces and check its network configuration file.