Oki ML490n Network User's Guide for OkiLAN 6020e - Page 92
The Dynamic Host Configuration Protocol DHCP, after two minutes, it will timeout and assume a default
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Section 4 - Chapter 2 - Configuring the OkiLAN 6020e DHCP The Dynamic Host Configuration Protocol (DHCP) provides a framework for passing configuration information to hosts on a TCP/IP network in a client/ server fashion. DHCP is based on the Bootstrap Protocol (BOOTP), adding the capability of automatic allocation of reusable network addresses and additional configuration options. DHCP uses the same packet structure as BOOTP so current BOOTP relay agents will also interact with DHCP messages. DHCP offers dynamic IP address allocation. When a client receives an IP address, it also receives a lease (an amount of time the host may use the address). The lease times vary from 1 hour to 100 years, or may be infinite. When the lease expires, the host must stop using the address. DHCP may also be used like BOOTP, with a certain IP address always assigned to a certain device. Depending on the server, both methods may be used at the same time. If the OkiLAN 6020e does not find a DHCP server after two minutes, it will timeout and assume a default address of 198.102.102.254. This follows current BOOTP and RARP behavior. If the OkiLAN 6020e receives multiple responses, it will choose the first one. When the OkiLAN 6020e receives an address, it sends an ARP message once every second for five seconds on the offered address to determine if another device is using it. If the OkiLAN 6020e finds another device is using the address, it will refuse the address and start looking for a new address. IV - 10 OKI OkiLAN 6020e User's Guide