> For the complete documentation index, see [llms.txt](https://docs.islandrouter.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.islandrouter.com/island-router-cli-2.3.2/commands/ip-global-context/ip-ipv6.md).

# ip ipv6

## Syntax

```
[no] ip ipv6 off|on
```

## Syntax Description

<table><thead><tr><th width="203">Keyword</th><th>Description</th></tr></thead><tbody><tr><td><code>no</code></td><td>(Optional) Reset the command to its default value.</td></tr><tr><td><code>off</code></td><td>Disable IPv6 on the Island.</td></tr><tr><td><code>on</code></td><td>Enable IPv6 the Island.</td></tr></tbody></table>

## Defaults

IPv6 is enabled by default.

## Usage Guidelines

IPv6 is fully supported by Island, and is enabled on all interfaces by default. Island will attempt to obtain an IPv6 address and a delegated prefix on each WAN port, and will assigne IPv6 addresses to each LAN port.

While IPv6 can be disabled on individual interfaces using [interface-specific ip commands](/island-router-cli-2.3.2/commands/ip-interface-context.md), this command can be used to disable IPv6 on all interfaces.

## Examples

```
ip ipv6 off
```

## Related Commands

{% content-ref url="/pages/GGOFOQUyTb1mbR6kWj3U" %}
[ip dhcp6-client](/island-router-cli-2.3.2/commands/ip-interface-context/ip-dhcp6-client.md)
{% endcontent-ref %}

{% content-ref url="/pages/8AYhPvW1H5OJKSUN40pZ" %}
[ip dhcp6-server](/island-router-cli-2.3.2/commands/ip-interface-context/ip-dhcp6-server.md)
{% endcontent-ref %}

{% content-ref url="/pages/psK9ReGuUqcT3wP9VEXl" %}
[ip router-advertise](/island-router-cli-2.3.2/commands/ip-interface-context/ip-router-advertise.md)
{% endcontent-ref %}

{% content-ref url="/pages/edkqgrZvrlsxOYKu6goq" %}
[ip router-solicit](/island-router-cli-2.3.2/commands/ip-interface-context/ip-router-solicit.md)
{% endcontent-ref %}


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