2.2.1.3 NAP-CoID Option
This vendor-specific option is sent by a DHCP client if NAP has been enabled on it. It is used to send a randomly generated correlation ID generated by the client to the DHCP server to enable end-to-end correlation of NAP transactions between a DHCP client and a DHCP server. (This correlation ID is used only for logging.)
This vendor-specific option is encapsulated inside option 43, as specified in [RFC2132] section 8.4.
The NAP Correlation ID (NAP-CoID) option is defined as follows.
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Vendor-Specific_Option_Code |
Vendor-Specific_Option_Length |
Vendor-Specific_Option_Data (130 bytes) |
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Vendor-Specific_Option_Code (1 byte): This MUST be 0xDE.
Vendor-Specific_Option_Length (1 byte): This MUST be 0x82.
Vendor-Specific_Option_Data (130 bytes): Binary data representing a correlation ID that SHOULD<2> be generated randomly.