DHCPv4

Overview

The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on IPv4 networks. A DHCPv4 server dynamically assigns an IPv4 address and other network configuration parameters to each device on a network so they can communicate with other IP networks. See this DHCP Wikipedia article for a detailed overview of how DHCP works.

Note that Zephyr only supports DHCP client functionality.

API Reference

group dhcpv4

DHCPv4.

Functions

void net_dhcpv4_start(struct net_if *iface)

Start DHCPv4 client on an iface.

Start DHCPv4 client on a given interface. DHCPv4 client will start negotiation for IPv4 address. Once the negotiation is success IPv4 address details will be added to interface.

Parameters

  • iface: A valid pointer on an interface

void net_dhcpv4_stop(struct net_if *iface)

Stop DHCPv4 client on an iface.

Stop DHCPv4 client on a given interface. DHCPv4 client will remove all configuration obtained from a DHCP server from the interface and stop any further negotiation with the server.

Parameters

  • iface: A valid pointer on an interface