Configuring DHCP Policies
Every DHCPv4 scope or DHCPv6 prefix must have one or more policies defined for it. Policies define lease duration, gateway routers, and other configuration parameters, in what are called DHCP options. Policies are especially useful if you have multiple scopes or prefixes, because you need only define a policy once.
This section describes how you can define named policies with specific attributes and option definitions, or use system default or embedded policies.