Captive portal with client using google dns
I have problem when using Captive portal when client using google DNS. User can't redirect to splash page. When I set dns is the pfsense, this work ok. But Captive portal can work with google dns? How can I config this?
You have to put all external DNS servers in the CPs Allowed IP Addresses. It's generally just better for CP clients to be DHCP and just get the DNS servers from that.
Either that, or set your PFS as a DNS forwarder and set the firewall as your clients' primary DNS referrer in your DHCP configuration.