dhcpcd 是一个兼容 RFC2131的DHCP客户端程序，支持DHCP的全部功能并且体积非常小，只有差不多 46k。
This is an RFC2131 and RFC1541 compliant DHCP client daemon. dhcpcd gets an IP address and other information from a corresponding DHCP server, configures the network interface automatically, and tries to renew the lease time according to RFC2131 or RFC1541 depending on the command line option. Please see the dhcpcd man page for complete description of command-line options.
dhcpcd has been reported to compile and successfully used on Intel, PowerPC, and Alpha-based Linux platforms providing glibc-2.0.5 or later has been installed.