Technical data
Configuring the DHCP Server
7.4 Configuring the DHCP Server
7.4 Configuring the DHCP Server
To configure the DHCP server, perform the following tasks:
Task Described in...
Enable DHCP on your system and set up DHCP files and
databases.
Section 7.4.1
Set up DNS/BIND. Section 7.4.2
Set up the cluster failover environment. Section 7.4.5
Stop the DHCP process. Section 7.3.1
Shut down and start up the DHCP process. Section 7.3
Configure client information (use the DHCP GUI or make
changes manually).
Section 7.5 or Section 7.7,
respectively
Set up the NETMASKS. file, if appropriate. Section 7.2.2.4
Define IP addressing. Section 7.6
7.4.1 Enabling the DHCP Server
To enable DHCP initially, run the TCPIP$CONFIG procedure by entering the
following command and then choose DHCP from the Server Components menu:
$ SYS$STARTUP:@TCPIP$CONFIG
The configuration procedure asks if you want to convert existing BOOTP entries
to DHCP database:
Do you want to rollover old-style BOOTP entries into the DHCP
database? [Y]
• If you answer Yes, the TCPIP$DHCP_BOOTPTODHCP.COM procedure
tries to locate the existing BOOTP database. Once it locates a file, the
configuration procedure asks you to confirm its selection or make a new
selection:
Name of file to use for old-style BOOTP: SYS$SYSTEM:TCPIP$BOOTP.DAT
Press return or enter new file name:
The configuration procedure does the following to the file:
Converts any existing BOOTP information to the appropriate DHCP
format in the new DHCPCAP. configuration file.
Sets up the DHCP server to support BOOTP clients.
Sets up permanent leases for existing BOOTP clients.
During TCPIP$CONFIG, all DHCP-related files are placed in the
SYS$SYSDEVICE:[TCPIP$DHCP] directory unless you define the system
logical name TCPIP$DHCP_CONFIG (see Table 7–5).
• If you answer No, the new DHCP configuration file DHCPCAP. remains
empty, and your BOOTP clients will not be served.
TCPIP$CONFIG invokes the command procedure
SYS$MANAGER:TCPIP$DHCP_SETUPCOMMANDS.COM, which defines
the GUI Server Management Console and DHCP utilities as OpenVMS
foreign commands.
7–18 Configuring the DHCP Server