Optional Message

Code

56

Length

Minimum of 1 octet. Length depends on the length of the sent message.

Value

ASCII character text.

Description

Can be used by both the DHCP server and DHCP clients in the following ways:

A server can use this option type to provide and embed an error message in a DHCP Negative Acknowledgment message (DHCPNak) in the event of a failure.

A client can use this option type in a DHCPDecline message to indicate why it declined offered parameters.

The message consists of a variable-length ASCII text string, which the receiving computer can then either log or display.

Structure

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