If you want to look more "professional" or have your name always in front of the client, do what I do and use the custom dns plan at dyn

http://dyn.com/

I don't see my plan listed but call and ask them about it. I have the "standard dns service" which lets me use company name.

Instead of Mrclient.fly2dns.com, it will be Mrclient.yourcompanyname.com

It's 60.00 per year with up to 75 custom dns names, I use it to keep dvr's, nvr's and routers updated....Charge the client accordingly, and annually as I do.

Shoot me an email if any questions