How to Install and Configure DHCP

Use this procedure to install and configure DHCP.

1. Install the following packages from the Solaris CD:

   • SUNWdhcsu

   • SUNWdhcsb

   • SUNWdhcm

2. Mount DHCP Cluster File Systems – Ensure that the Cluster File System for the DHCP network table is mounted.

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   Note –

   If a Failover File System is used by the DHCP network table, you must mount this manually.

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3. Install the required DHCP patches.

   Refer to Configuration Requirements for a list of patches that you need to install.

4. Run the following commands to configure DHCP –

   # /usr/sadm/admin/bin/dhcpmgr

   • Choose Configure as DHCP Server.

   • Choose Text files or Binary files.

   • Enter a path for the DHCP network table.

   • Choose which name services to use to store host records.

   • Choose Length of Lease and whether clients can renew their leases.

   • If used, supply a DNS configuration for the DHCP client of this server.

   • Add which network and network mask should provide ip-addresses.

   • Choose LAN as Network Type.

   • If used, supply a NIS configuration for the DHCP clients of this server.

   • If used, supply a NIS+ configuration for the DHCP clients of this server.

   • Create your addresses and macros.

5. Check whether /etc/inet/dhcpsvc.confhas the following parameters defined.

   • DAEMON_ENABLED is always set to true.

   • PATH points to a Cluster File System.

   • RUN_MODE is always set to SERVER

   • RESOURCE is set to either SUNWbinfiles or SUNWfiles.

6. make sure /etc/inet/dhcpsvc.conf is consistent on all nodes within Sun Cluster that will host the DHCP service.

   This can be done by either:

   • Copying /etc/inet/dhcpsvc.conf onto each node with Sun Cluster;

   • Moving your edited dhcpsvc.conf to your Cluster File System, and creating a symbolic link from /etc/inet/dhcpsvc.conf to dhcpsvc.conf within the Cluster File System.

7. Ensure that DHCP is stopped on all nodes.

   # /etc/rc2.d/K21dhcp stop

8. Disable DHCP startup on boot on all nodes.

   # rm /etc/rc3.d/S34dhcp