In the alternate network configurations, the Sun Ray server is also used as a DHCP server. Using a shared network configuration with external DHCP services is the recommended way to set up a Sun Ray environment, which is described in Planning a Sun Ray Network Environment in the Installation and Configuration Guide.
The utadm command is used to manage the Sun Ray network interfaces. Note the following information:
If the IP addresses and DHCP configuration data are not set up properly when the interfaces are configured, then the failover feature will not work as expected. In particular, configuring the Sun Ray server's interconnect IP address as a duplicate of any other server's interconnect IP address may cause the Sun Ray Authentication Manager to generate "Out of Memory" errors.
If you make manual changes to your DHCP configuration, you will have to make them again whenever you run utadm or utfwadm.
If you press CTRL-C while performing
utadm configuration,
utadm might not function correctly the
next time it is invoked. To correct this condition, type
dhtadm -R.