| 单词 | DHCP (Dynamic Host Configuration Protocol) |
| 释义 | DHCP (Dynamic Host Configuration Protocol) A method to automate the assignment of Inter- net Protocol (IP) addresses, subnet masks, and other parameters. DHCP allows a router connecting a LAN to the Internet to assign public IP addresses on a temporary basis.When a workstation logs onto the network, the DHCP client requests an IP address, which is provided from a pool of available addresses stored on a server, which may be integrated into the router. That address is assigned to that client for the duration of the session, or for a specific time period, after which the address is returned to the pool for reassignment to another client station. DHCP commonly works in conjunction with Network Address Translation (NAT), which translates between the private IP address the host workstation uses within the LAN domain and the public IP address (and specific TCP or UDP port number) it uses in the public domain. DHCP is specified in RFC 2131. In combination, these protocols relieve pressure on the IPv4 address scheme, which otherwise would be in risk of depletion. See also client, domain, Internet, IP, IP address, IPv4, IPv4 address, NAT, private IP address, protocol, public IP address, router, server, session, subnet mask, TCP, and UDP. |
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