A method and apparatus are provided for implementing service requests from
a common database in a multiple dynamic host configuration protocol
(DHCP) server environment. A DHCP authorization cache is provided to
implement synchronized access for the multiple DHCP servers to the common
database. The DHCP authorization cache includes a plurality of elements,
each element for storing a plurality of entries including a client
identifier, an ISCSI DHCP router pointer, an ISCSI DHCP router pointer
alternate, and a timestamp and the DHCP authorization cache includes an
entry pointer initially set to zero.