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3.1.4.3 Creating and Transmitting a DHCPINFORM Message

Whenever a DHCP client sends a DHCPINFORM message and its NAP-Capable Server state is set to "Unknown" or "Yes", it MUST include the NAP-SoH (section 2.2.1.1) option of length one octet and the data equal to zero in the DHCP INFORMATION-REQUEST (DHCPINFORM) message. It MUST also include a NAP-CoID (section 2.2.1.3) option in this message.

If instead the NAP-Capable Server state is set to "No", it MUST send the message without any options defined in this document.