type the public name or IPv4

hi,

I had configured direct access Server on 2012 R2 and i had configured with the IP Address before. But i want to reconfigure my Direct Access Server with public Name so my question is :-

1. Is there any way to configure the DA Server with Both(IPv4 and Public Name).?

2. If now i reconfigure the DA Server with Public name is my DA Connected Client will be effected..?

Thanks,

Roshan