Dynamic Host Configuration Protocol (DHCP)/BootP (Bootstrap Protocol)

Dynamic Host Configuration Protocol (DHCP)/BootP (Bootstrap Protocol)

Dynamic Host Configuration Protocol (DHCP) gives IP addresses to hosts. It allows easier administration and works well in small-to-even-very-large network environments. All types of hardware can be used as a DHCP server, including a Cisco router.
DHCP differs from BootP in that BootP gives an IP address to a host, but the host’s hardware address must be entered manually in a BootP table. You can think of DHCP as a dynamic BootP. But remember that BootP is also used to send an operating system that a host can boot from. DHCP can’t do that.
But there is a lot of information a DHCP server can provide to a host when the host is requesting an IP address from the DHCP server. Here’s a list of the information a DHCP server can provide:
•    IP address
•    Subnet mask
•    Domain name
•    Default gateway (routers)
•    DNS
•    WINS information
A DHCP server can give us even more information than this, but the items in that list are the most common.

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