What is the function of the DHCP Offer packet?

The function of the DHCP Offer packet is to provide the requested configuration parameters by the server. When a DHCP client broadcasts a DHCP Discover packet to locate a DHCP server, the server responds with a DHCP Offer packet. This packet includes key information that the client needs to configure its network settings, such as an available IP address, the subnet mask, the default gateway, and the DNS server information. This is a critical step in the process of obtaining network configuration, as it outlines the specifics that the client can use to establish its connection to the network.

The other options relate to different aspects of the DHCP protocol. Broadcasting availability of DHCP clients does not occur through the Offer packet; instead, the initial discovery process utilizes broadcast messages. Confirming lease of an IP address pertains more to the DHCP Acknowledgment packet, which finalizes the IP lease after the client accepts the offer. Identifying and sending renewal requests is part of the DHCP process but involves different packets and messages outside the specific role of the DHCP Offer. Each of these choices has its own context within DHCP operations, but the key function of the DHCP Offer is accurately described by the selected answer, as it directly responds to the requests made by the client regarding configuration parameters.