No Redirect Type While Creating Subdomain

Hello.

I want to create a subdomain. I searched it on the internet and it's said that "L" redirect type should be selected. But R, L and R,L types are disabled and i cannot select them. I attached a screenshot of Redirect Type select list.

I follow these steps to create subdomain:

Adding subdomain for website from Subdomain for website section.
Adding DNS A record for subdomain.
Creating subdomain folder in web directory and setting owner.

What am i missing?

P.S.: I selected last in Redirect Type select list and it didn't work, didn't redirect to its folder.

I'm on Squeeze, using Nginx + PHP-FPM.

 

These flags are for Apache, not nginx, that's why you cannot select them.

 

Thank you for your answer.

So, should i select "last" type and wait one day for redirecting?

Are all my steps i followed right?