CNAME would only connect ipv6 connection

I signed up for freenet6's ipv6 tunnel. Everyone (even ipv4) can access my XAMPP server by using http://myaccount.broker.freenet6.net no problem. What I want to accomplish is to setup a domain instead of using the free domain provided by freenet6. So I put a CNAME record for subdomain.mydomain.com and pointed it to myaccount.broker.freenet6.net, the problem here is that only ipv6 connection can browse the site if you try to access it using subdomain.mydomain.com. Am i doing something wrong here? Any suggestion would be greatly appreciated..

why can't ipv4 connections detect the domain after the CNAME is in place? These are the domains so you can check on your own. Original domain by freenet6 = akosiboybastos.broker.freenet6.net accessible via ipv4 and ipv6. my test domain bastosforum.strangled.net (can only be accessed by ipv6) which has a CNAME record directed to akosiboybastos.broker.freenet6.net. Thanks

BB

Solution 1:

So, now we have the real DNS records, we can do some diagnosis.

dig for both A and AAAA on akosiboybastos.broker.freenet6.net gives a valid response, with an appropriate address. Good.

dig for both A and AAAA on bastosforum.strangled.net gives the same responses (with a CNAME response thrown in). Also good. This means that the problem is not DNS-related, as those records are in order.

wget -6 http://bastosforum.strangled.net/ gives a 200 OK response.

wget -4 http://bastosforum.strangled.net/ gives a 404 Not Found response. This means that your webserver is misconfigured so that it's not serving the response you desire on IPv4. Given that the initial DNS problem asked in this question has been solved, I would recommend posting a new question with relevant webserver-related configuration, if you can't determine the configuration error yourself.