Ref: http://solaris.reys.net/using-solaris-10-as-dhcp-client/
Here is the process of setting up a Solaris 10 DHCP client
1) Find you what network interface you are using
ifconifg -a
2) Create a /etc/dhcp.[network interface_name] file
ex:touch /etc/dhcp.e1000g0
3) Edit the /etc/hostname.[network_interface]
This should be one line either just host name if your NOT using
dynamic DNS update or "inet host name" if you are using dynamic DNS.
[host name]
or
inet [host name]
4) Create of edit the /etc/nodename file
This should have your host name
5) Edit the /etc/host file
This should NOT for your host name. DHCP will put an
entry in for you host.
6) If you are using dynamic DNS to with DHCP you have to edit the
/etc/default/dhcpagent file. Set
REQUEST_HOSTNAME=yes
7) Configure your network interface to use DHCP
ifconfig [network interface] dhcp start
8) reboot ?
