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Tutorials and FAQs / Re: HOWTO - Redirect all DNS Requests to Opnsense
« on: March 30, 2022, 02:01:34 pm »
"!firewall_ip" as source takes care (or should to) that the firewall itself can use any DNS servers without being redirected to itself. I think this is superfluous as the rule is placed on LAN interface and the firewall itself will never hit the rule for outgoing DNS requests. However, without specifying the source everything works fine and the firewall itself is able to make necessary requests to DNS servers in WAN.