Sun Cluster 3.1 Data Service for DHCP

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 – You must ensure that the Cluster File System for the DHCP network table is mounted.

    Note –

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

  3. Install the required DHCP patches — Refer back to the Configuration Requirements for a list of patches that need to be installed.

  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 should be used to store host records

    • Choose Length of Lease and if 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 /etc/inet/dhcpsvc.conf – has the following parameters defined.

    • DAEMON_ENABLED should always be true

    • PATH should point to a Cluster File System

    • RUN_MODE should always be 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

    • Move your edited dhcpsvc.conf to your Cluster File System and create 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