Kyocera Ai3010 Printing System H Operation Guide - Page 13

Dynamic Host Configuration Protocol (DHCP) The Dynamic Host Configuration Protocol (DHCP) provides a mechanism for delivering IP configuration parameters, including IP address, Subnet mask and default gateway, to devices (hosts) on an IP network. A DHCP server manages the pool of available IP addresses and grants device requests for an IP address. At power-up, the NIC broadcasts a DHCP request for an IP address. If a DHCP server is present the request will be processed, and an IP address will be returned to the NIC. Upon receipt of the IP address, the NIC resets, and prints a network status page. The network status page will list the new IP address (and Subnet mask and default gateway). Once an IP address has been assigned to the NIC, it will no longer broadcast DHCP requests. Therefore, NIC IP address assignment with DHCP will only work when the NIC does not have an existing IP address. The DHCP server may grant a temporary IP address, called a temporary lease or temporary reservation, which expires after a period, or may grant a permanent or unlimited lease or reservation which does not expire. Devices that are granted a temporary lease will be notified before the lease expires and asked if they would like to extend the lease. The NIC will continue extending its lease indefinitely (unless prohibited by your DHCP server configuration) and thus maintain a consistent IP address. IMPORTANT: If the NIC is not turned on or is not connected to the network during the period when the DHCP server is sending requests to extend the lease, the lease will not be extended. The DHCP server will cancel the lease and may assign the IP address to another device. Therefore, it is highly recommended that you explicitly specify the NIC lease as permanent or unlimited in your DHCP server configuration. If you prefer not to use DHCP for IP address assignment, it may be disabled with the MAP utility or by connecting to the NIC address with a browser. The enable/disable DHCP setting may be found in the Setup TCP/IP section under the Protocols heading. 13