subdomains redirect to Virtuamin's default domain


Is it normal that the subdomain created in Address Records redirects to the Virtualmin Server’s default domain or am I doing something wrong?
It means that if I create a record such as with server’s IP address, the web requests to redirect to the default domain as defined in Website Options.
What I want to achieve, if possible would be to see all web requests made to any subdomain of a particular domain to end up with its own main domain.
I hope that makes sense.
Thanks for your advice