What must be done to ensure clients receive the correct IP settings via DHCP?

Configuring DHCP options properly is essential for ensuring that clients receive the appropriate IP settings because these options define how the DHCP server will communicate with clients and what specific configurations will be provided.

When a DHCP server is set up, it does not just assign an IP address; it can also relay critical information such as subnet masks, gateway addresses, DNS server addresses, and other options. These parameters are typically specified through DHCP options such as option 3 for the router (gateway), option 6 for DNS servers, and option 51 for the lease time.

Without the correct DHCP options, clients may not receive their necessary network configuration, leading to connectivity issues. For example, if the DNS server option is missing, clients may not be able to resolve domain names, resulting in a failure to access essential services or websites even though they have an IP address.

The other choices may address different aspects of network functionality, but they do not specifically relate to the core requirement of sending the correct IP settings, which revolves around accurately configuring the DHCP options.