Configuring a DHCP Client
The DHCP client configuration procedure is much simpler than that of the DHCP server, where most of the work has to be done. If you elected to use DHCP when installing Solaris 9 on your system, then there is nothing more to do and the DHCP client software will be enabled.
By default, the DHCP client is enabled to request a hostname dynamically, depending on how the DHCP server has been set up.
To start using DHCP on a system already running Solaris 9, create an empty file for the primary interface and edit the /etc/default/dhcpagent file so that any IP address assigned to the client is relinquished when the client is shut ...