Dell X30 - Axim X30 - Windows Mobile 2003 SE 312 MHz Setup Manual page 6

6. LOGON to "hostreg" with your distinguished network logon credentials.
7. Select the "Building" you will be using the wireless device in. Select
"WIRELESS" as your Category. Leave "Tag #" blank (if you are Faculty/staff,
you MUST populate this field with the 5-digit tag number attached to the device).
"Hardware Address" should be populated by a 12-digit alpha-numeric MAC
Address (Media Access Control address). "Operating System" should be selected
as Windows CE.