3.1.5 Message Processing Events and Sequencing Rules
DHCPv4 clients process DHCPv4 messages as specified in [RFC2131] sections 3 and 4, with additional behavior as specified in this section.
If the length or the data of the field of any of the options in a DHCPv4 message received by clients implementing this specification is inconsistent, the DHCPv4 client MUST silently discard the DHCPv4 message and restart the initialization process.