Technical data

Configuring the DHCP Server
7.4 Configuring the DHCP Server
With the DHCP cluster failover configured, you need to indicate that an
address range is owned by other hosts. Therefore, you specify the null IP
address of 0.0.0.0 in the second field of the NETS. file in each IP address
range to be shared among the DHCP servers. For example, the following
entry in the NETS. file is owned by IP address 17.18.208.100:
17.18.0.0 17.18.208.100 17.18.208.10-17.18.208.50
You would change the entry to the following:
17.18.0.0 0.0.0.0 17.18.208.10-17.18.208.50
If you prefer to use the DHCP GUI to configure the null address, choose the
IP Ranges parameter on the Server/Security tab and set the parameter to
True.
9. Shut down DHCP on each cluster member where DHCP is running by using
the TCPIP$DHCP_CLUSTER_SHUTDOWN command procedure. When
the command procedure is finished, restart DHCP on the cluster by using
TCPIP$DHCP_CLUSTER_STARTUP.
7.4.6 Methods to Configure DHCP Parameters
TCP/IP Services provides three methods for configuring server and client
parameters:
• An easy-to-use DHCP graphical user interface (GUI) to do the following:
Configure dynamic and static IP addressing for all clients. See
Section 7.6.
Configure the client information appropriate for your client base. See
Section 7.5.
Set DHCP parameters to customize the DHCP server. See Section 9.4.3.
• Manually editing the DHCP configuration files and then signaling the DHCP
server to read the files. See Section 7.7.
• Using the DHCPDBMOD utility. See Section 7.8.2.
7.5 Using DHCP GUI to Configure DHCP
You can modify the default DHCP server settings and define additional
characteristics by performing the following tasks:
Task Described in...
Define server and security parameters. Section 7.5.2
Define subnet parameters. Section 7.5.3.1
Define node parameters. Section 7.5.3.2
Define group parameters. Section 7.5.3.3
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