How does ADSM Map nodenames to IP's?

[Daniel Swan/TM]

I have a nodename, prodwf01, that backs up successfully each day.

However, the hostname 'prodwf01' isn't resolved by either DNS, nor does it
exist in the
host file.  The client scheduler is set to 'prompted'.

How the heck is ADSM getting in touch with prodwf01?   How is the nodename
resolving to an IP?