Block Port ''53''

Hi everyone !
I need help, with my RUT950 router LTE. I received a notification from my service provider “opened port 53/ UDP”. And i did next steps:

But the problem still remained

Port still open :frowning:


By default, port 53 is closed on the WAN side on our devices and no additional rules are needed. You’re performing a scan on the LAN side, from which there is a DNS service running on the device on port 53.
I’d suggest deleting the created rules and performing a scan using a tool like this: Port Scanner
Make sure you’re using a WAN interface IP address which can be found by navigating to Network → WAN.

Best regards,

result of scan

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