One way to do this is to use ipfilter to keep all services from being broadcast to the network. Enable it (svcadm enable ipfilter) and add a file /etc/hosts.deny with one line:
ALL: ALL Then create an empty file /etc/hosts.allow, and add any services you may want, if any. For example, to allow localhost for all services and ssh to the network: ALL: localhost sshd: ALL This message posted from opensolaris.org