> For the complete documentation index, see [llms.txt](https://mudfish.gitbook.io/topics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mudfish.gitbook.io/topics/vpn/basic/undefined.md).

# Unidentified Network

{% tabs %}
{% tab title="한국어" %}

* 재부팅
* [기본 동작 여부 확인](https://mudfish.gitbook.io/topics/~/drafts/-LWzGlz7yxS8VTHnb9aS/primary/vpn/checking-basic-functionality)
* [연결 프로토콜](https://mudfish.net/docs/ko/vpn/references/connection_protocols.html)

{% content-ref url="/pages/-LWz5mcbfwdVDb81XQRb" %}
[Checking Basic Functionality, What's my IP?, MUDEC\_00043, 00123, 00126, 00139, 00309](/topics/vpn/basic/checking-basic-functionality.md)
{% endcontent-ref %}

{% content-ref url="/pages/-LWz\_dTDlKid7iuVvko-" %}
[FastConnect mode, MUDEC\_00062, MUDEC\_00114, MUDEC\_00115](/topics/vpn/basic/connection-protocols.md)
{% endcontent-ref %}

<https://mudfish.net/forums/2/topics/12432>
{% endtab %}

{% tab title="English" %}

* Reboot
* [Check Basic Functionality](https://mudfish.gitbook.io/topics/~/drafts/-LWzGlz7yxS8VTHnb9aS/primary/vpn/checking-basic-functionality)

{% content-ref url="/pages/-LWz5mcbfwdVDb81XQRb" %}
[Checking Basic Functionality, What's my IP?, MUDEC\_00043, 00123, 00126, 00139, 00309](/topics/vpn/basic/checking-basic-functionality.md)
{% endcontent-ref %}

{% content-ref url="/pages/-LWz\_dTDlKid7iuVvko-" %}
[FastConnect mode, MUDEC\_00062, MUDEC\_00114, MUDEC\_00115](/topics/vpn/basic/connection-protocols.md)
{% endcontent-ref %}

The TAP driver is a kind of virtual driver. It simulates a link layer device and you don't have to care about that shows Unidentified Network. You can peek about a brief of network tunnel/tap at <https://en.wikipedia.org/wiki/TUN/TAP>
{% endtab %}
{% endtabs %}