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IST 164 CH4

Implementing DHCP

TermDefinition
Dynamic Host Configuration Protocol (DHCP) A component of the TCP/IP protocol suite used to assign an IP address to a host automatically from a defined pool of addresses.
Lease Renewal The process of a DHCP client renewing its IP address lease by using unicast DHCPREQUEST messages.
DHCP server authorization The process of enabling a DHCP server in a domain environment to prevent rogue DHCP servers form operating on the network.
DHCP scope A pool of IP addresses and optionally other IP configuration parameters from which a DHCP server leases addresses to DHCP clients.
Lease Duration A parameter of a DHCP IP address lease that specifies how long a DHCP client can keep an address.
Exclusion Range A range of IP addresses in the scope that the DHCP server doesn't lease to clients.
Reservation An IP address associated with a DHCP client's MAC address to ensure that when the client requests an IP address, it always gets the same one along with any configured options.
Superscope A special type of scope consisting of one or more member scopes; it allows a DHCP server to service multiple IP subnets on a single physical network.
Multicast Scope A type of DHCP scope that allows assigning multicast addresses dynamically to multicast servers and clients by using Multicast Address Dynamic Client Allocation Protocol (MADCAP).
Vendor Class A field in the DHCP packet that device manufacturers or OS vendors can use to identify a device model or an OS version.
Conflict Detection A DHCP server property that causes the DHCP server to attempt to ping an IP address before it's offered to a client to make ensure that the address isn't already in use.
Name Squatting A DNS problem that occurs when a non-Windows computer registers its name with a DNS server, but the name has already been registered by a Windows computer.
DHCP name protection A feature in DHCP that prevents name squatting by non-Windows computers by using the DHCP resource record Dynamic Host Configuration Identifier (DHCID). See also name squatting.
DHCP filters A DHCP server feature that allows administrators to restrict which computers on a network are leased IP addresses.
DHCP policies A feature in Windows Server 2016 that gives administrators more fine-tuned control over IP address lease options with conditions based on criteria.
User Class A custom value you create on DHCP server and then configure on a DHCP client; used much like the Vendor Class value.
Preboot Execution Environment (PXE) A network environment built into many NICs that allows a computer to boot from an image stored on a network server.
DHCP Relay Agent A device that listens for broadcast DHCPDISCOVER and DHCPREQUEST messages and forwards them to a DHCP server on another subnet.
Stateless Autoconfiguration A method of IPv6 autoconfiguration in which the node listens for router advertisement messages from a local router.
Stateful Autoconfiguration A method of IPv6 autoconfiguration in which the node uses an autoconfiguration protocol, such as DHCPv6 to obtain its IPv6 address and other configuration information
Prefix The part of the IPv6 address that's the network identifier.
Preference A value used to indicate priority when there are multiple DHCPv6 servers.
DHCP Unique Identifier (DUID) A hexadecimal number usually derived from the MAC address of the network interface used by DHCPv6 to identify clients for address leases and to create reservations.
Split Scope A fault-tolerant DHCP configuration in which two DHCP servers share the same scope information, allowing both servers to offer DHCP services to clients.
DHCP Failover A feature in Windows Server 2016 that allows two DHCP servers to share the pool of IP addresses in a scope, giving both servers access to all addresses in the pool.
Load-Balancing Mode The default DHCP failover mode in which both DHCP servers participate in address leasing at the same time from a shared pool of addresses. See also DHCP failover.
Hot Standby Mode A DHCP failover mode in which one server is assigned as the active server to provide DHCP services to clients and the other server is placed in standby mode. See also DHCP failover.
Maximum Client Lead Time (MCLT) The maximum amount of time a DHCP server can extend a lease for a DHCP client without the partner server's knowledge. It also defines the amount of time a server waits before assuming control over all DHCP services if its partner is in Partner Down state
DHCP Filter A DHCP server feature that allows administrators to restirct which computers on a network are leased IP addresses.,
Created by: cswilloughby15
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