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Which DHCP message confirms a client's configuration parameters?

The server confirms them with a DHCPACK message.

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  1. DHCPACK ✔
  2. DHCPDISCOVER
  3. DHCPDECLINE

Why: After a client requests an offered configuration, the selected server sends DHCPACK with the final parameters. The message confirms that the client may use the assigned configuration.

Huh, didn't know that: A DHCP address is normally leased for a period rather than permanently owned by the client.

The dad joke
DHCP said ACK because the address checked out.
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References

Answer: DHCPACK. After a client requests an offered configuration, the selected server sends DHCPACK with the final parameters. The message confirms that the client may use the assigned configuration.

  1. RFC 2131: Dynamic Host Configuration Protocol datatracker.ietf.org/doc/html/rfc2131
    The client receives the DHCPACK message with configuration parameters.
    Checked 2026-10-10.

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