> 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/firewall/mudec_00281.md).

# MUDEC\_00281

소켓, 방화벽

{% tabs %}
{% tab title="한국어" %}

* `-O`나 `-t` 옵션을 넣거나 빼 보시기 바랍니다.
* MAC 주소를 변경해 보시기 바랍니다.

{% content-ref url="/pages/-LWxf-HUG3fmbuB4hfJx" %}
[process x, MUDEC\_00299, MUDEC\_00022](/topics/vpn/firewall/process-x.md)
{% endcontent-ref %}

![](https://3475674705-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWoc97xBPh2omTCCksD%2F-LYQPSmUZhiBQf4MaPLU%2F-LYQPjwRO6WzSMxLIA5P%2Fko_firewall_o.png?alt=media\&token=da036d89-c2aa-4793-a496-4c7a62bb075f)
{% endtab %}

{% tab title="English" %}
Check [Firewall Issues](http://mudfish.net/docs/en/support/firewall.html) then try to test `-O` or `-t` options.

{% content-ref url="/pages/-LWxf-HUG3fmbuB4hfJx" %}
[process x, MUDEC\_00299, MUDEC\_00022](/topics/vpn/firewall/process-x.md)
{% endcontent-ref %}

<https://mudfish.gitbook.io/topics/vpn/process-x>

![](https://3475674705-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWoc97xBPh2omTCCksD%2F-LYRrfl8FU-Cnxod2atl%2F-LYRrlWT-yrCmynkee8F%2Foption_o.png?alt=media\&token=43e476db-64e4-4b92-a712-98b10685cce6)

![](https://3475674705-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWoc97xBPh2omTCCksD%2F-LYWJR3WtixY5ho6uiCy%2F-LYWJWcZ9sLUIpY765n3%2Fmacaddress.png?alt=media\&token=d7f3248a-8252-4ea1-b88b-58615a950a41)
{% endtab %}
{% endtabs %}