DHCP (dynamic host configuration protocol) is a used by networked computers to automatically obtain TCP/IP configuration information such as IP address, Subnet masks, DNS addresses, and WINS addresses. DHCP is not to be used for normal circumstances where static addressing is appropriate and required by the NCI-Frederick LAN Office. (Such as Desktop PCs, Servers, Printers, etc...). DHCP is to be used for mobile devices only (Such as Laptops, Notebook PCs and PDAs) and is currently available in most areas of the Frederick Campus network. . Contact the ABCC Helpdesk (x5555) to find out if it is available in your area. Should you wish to use DHCP, you must configure your mobile device to use the NCI-Frederick or NIH property tag number as the host name of the device with the exception of temporary access to publicly accessible areas of the network.. (Follow the instructions in the links below or contact the ABCC Helpdesk at x5555.) WARNING: If you are discovered using DHCP inappropriately the LAN Office will exclude you from using it further and you will be required to contact the ABCC Helpdesk (x5555) to re-establish this ability. NOTE: If your mobile device is currently configured for static addressing, you must manually record the current configuration before making the change to DHCP. Failure to do so will result in the inability to connect to the network when you return to normal activities. (Given you have no record of your static address.) If you should lose your address and you need assistance contact the ABCC Helpdesk at x5555. NOTE: If you plan to use DHCP for a personally owned mobile device (such as a laptop or PDA), you must inform ABCC prior to connecting to the network. Configuration Instructions by Operating System: Windows 2000/XP Windows 98/ME If you do not know how to change your hostname to your property number, please see Changing Your Hostname.