Foundation Topics

How DHCP Works

Dynamic Host Configuration Protocol (DHCP) works by providing IP addressing information from a pool of addresses called a scope, which is defined in the DHCP server’s database. If a client accepts the address, it can use the address for a predefined period called a lease. If a client cannot obtain a lease of an IP address from a DHCP server, it cannot initialize TCP/IP normally.

DHCP used in Windows Server 2008 is based on standards defined by the Internet Engineering Task Force (IETF), which set out specifications in Request for Comment (RFC) 2131: Dynamic Host Configuration Protocol and RFC 2132: DHCP Options and BOOTP Vendor Extensions. With the advent of IPv6, IETF provided the specifications for using DHCP ...

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