The NetWare DHCP service is installed using the NetWare Installation Utility (INSTALL).

1. Start the INSTALL utility by typing the following command at the server console prompt:

   load install <Enter>

2. From INSTALL's Installation Options menu, choose the following:

   Install a product not listed

   Install a product not listed

3. When prompted, specify the location of the installation source files.

   • To install from the NetWare Installation CD-ROM mounted as a NetWare volume on the server, mount the volume, press <F3> , and enter the following:

     NW411:DHCP

     For information on mounting the NetWare Installation CD-ROM as a NetWare volume, see the NetWare 4 Installazione e upgrade manual.

   • To install from a CD-ROM drive installed as a DOS drive on the server, insert the NetWare Installation CD-ROM into the server's CD-ROM drive, press <F3> , and enter the following:

     D:\DHCP

     If necessary, replace D with the appropriate drive letter.

   • To install from a CD-ROM image copied to a NetWare server, copy the contents of the NWIP directories on the NetWare Installation CD-ROM to the server's disk drive. When prompted to enter a path for installation source files, enter the complete path to the source files as follows:

     servername /vol :directory path

4. Choose the Install Product option and press <Enter> .

5. From the list of servers, choose the server you want to install the NetWare DHCP service on and press <Enter> .

6. When prompted, choose Yes to start installing the NetWare DHCP service.

7. When the installation utility reports that the installation was successful, press <Enter> to clear the status message.

8. Press <Esc> and choose Yes as needed to exit the installation utility.

Backward Compatibility with BOOTP

The NetWare DHCP service is backward compatible with Boot Protocol (BOOTP) clients. A DHCP server responds to a BOOTP request as if it is a DHCP request.

All assigned IP addresses for BOOTP clients are treated as Permanent Lease assignments in DHCP, and the addresses are not re-used.

The NetWare DHCP service stores DHCP information in the DHCPTAB file in the SYS:ETC directory. When you install DHCP, the installation program copies the contents of the SYS:ETC/BOOTPTAB file to the SYS:ETC/DHCPTAB file. The DHCPSRVR and DHCPCFG NLMs use only the DHCPTAB file. Any changes to the BOOTPTAB file after installing DHCP are not reflected in the DHCPTAB file.

Loading DHCPSRVR

After you complete each of the tasks necessary to configure the NetWare DHCP service on a network, you need to load the DHCP Server NLM (DHCPSRVR.NLM). To load the DHCP Server NLM, enter the following command at the server console prompt:

load dhcpsrvr [-t x] [-a y] [-h] <Enter>

where

-t x specifies the time interval between checks to see if the DHCPTAB file has changed. The default is 60 seconds.

-a y specifies the time interval between checks to see if the lease time for an address has expired or not. The default is 10 minutes.

-h displays a help message.