DHCP

The DHCP^7.11 service may be defined as a protocol of dynamic attribution of parameters for configuration of network and workstations (door 67 and 68 UDP), an evolution of the BOOTP protocol. Basically, a DHCP client sends a broadcast packet to a network asking an IP address, and it obtains an answer if there is a DHCP server active in the network. The server not only attributes it an IP but also: Network mask, route by default, DNS server and WINS server.

DHCP allows two ways of attributing the IP addresses:

• Address manual or reserve: there an association between the MAC address of a client machine and the IP address to supply, and that machine stays with that same IP address;
• Dynamic: the client obtains the address from a range of address previously defined by the IPBrick administrator, for a defined period of time;

NOTE: There is a mechanism that allows to have the DHCP server in a IP network distinct from the clients, this mechanism is known by DHCP relay. The DHCP relay is assured by an agent installed in the post(s) present in the remote network(s), this agent receives the DHCP clients requests and routes them to the configured DHCP server.

Footnotes

... DHCP^7.11

Dynamic Host Configuration Protocol