The dynamic nature of DHCP means that an IP address is not permanently associated with the host name of the system that is using it. The DHCP management tools can generate a client name to associate with each IP address if you select this option. The client names consist of a prefix, or root name, plus a dash and a number assigned by the server. For example, if the root name is charlie, the client names are charlie-1, charlie-2, charlie-3, and so on.
By default, generated client names begin with the name of the DHCP server that manages them. This strategy is useful in environments that have more than one DHCP server because you can quickly see in the DHCP network tables which clients any given DHCP server manages. However, you can change the root name to any name you choose.
Before you configure your IP addresses, decide if you want the DHCP management tools to generate client names, and if so, what root name to use for the names.
The generated client names can be mapped to IP addresses in /etc/inet/hosts, DNS, or NIS+ if you specify to register host names during DHCP configuration. See Client Host Name Registration for more information.