Error creating virtual server

I installed CentOS as I could not wait for Fedora support. When I tried to add a virtual server, I received the following error:

Failed to create virtual server : Virtual FTP cannot be enabled unless a virtual IP address is allocated.

I am a noob at this, can anyone guide me in the right direction?

Thank you.

There’s a FAQ about this here:

In short, you probably don’t need that option checked. If you do, then the error means exactly what it says…You’ve gotta have a dedicated IP for every name-based virtual FTP account.

Thank you, I searched the forum, but could not find anything.