udhcpc is a small and lightweight DHCP client implementation for embedded systems and Linux-based devices. It is designed to be simple, fast, and efficient, with a low memory footprint and minimal dependencies. udhcpc supports both IPv4 and IPv6 addressing modes and can be easily integrated into various network configurations.
udhcpc implements the client side of the Dynamic Host Configuration Protocol (DHCP) protocol, which is used to automatically assign IP addresses and other network configuration parameters to devices on a network. When udhcpc is started, it sends a DHCP discovery packet to the network to locate a DHCP server. If a server responds, udhcpc negotiates with the server to obtain an IP address lease, subnet mask, default gateway address, DNS servers address and other configuration parameters.
udhcpc can also be used in conjunction with other networking tools such as ifconfig or iproute2 to configure the device’s network interface settings after obtaining an IP address from the DHCP server. Overall, udhcpc provides a simple yet powerful way for embedded systems and other Linux-based devices to obtain dynamic IP addressing information from a DHCP server.
