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Beginner Basics • Re: RouterOS 7.11.2 - "dns server failure" using public DNS

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For Me - I am the ISP...

Turns out was agressive Firewall.

Blocked input for UDP on all ppp interfaces, so looks like I did not have an "established/related" rule above... Was not trying from inside the network - was just testing from the router itself.

Our Router does not need UDP input generally except for DNS - so just moved it below our std block external DNS and allow local (and also the established rule)... Not sure why this site has a block on UDP, but meh.
Router is going to be DNS proxy though, so would have been a disaster had I not noticed (old Windows DHCP getting retired today)

Clients would have been shot had I not noticed, as it is a proxy, inless they had assigned DNS.

Noticed as time was 1 month out - so NTP had failed - so just lucky I guess.

Statistics: Posted by gammy69er — Thu Feb 01, 2024 11:07 pm



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