Lectures notes for 2010 - KTH

• Message - used by a server to provide an error message to client in a
DHCPNAK message in the event of a failure. A client may use this in a
DHCPDECLINE message to indicate the reason why the client
declined the offered parameters.(tag=56)
• Maximum DHCP Message Size - specifies the maximum length DHCP
message that it is willing to accept. A client may use the maximum
DHCP message size option in DHCPDISCOVER or DHCPREQUEST
messages, but should not use the option in DHCPDECLINE messages.
(tag=57)
• Renewal (T1) Time Value - specifies the time interval from address
assignment until the client transitions to the RENEWING state.
(tag=58)
• Rebinding (T2) Time Value - specifies the time interval from address
assignment until the client transitions to the REBINDING state.(tag=59)
• Class-identifier - used by DHCP clients to optionally identify the type
and configuration of a DHCP client. Vendors and sites may choose to
define specific class identifiers to convey particular configuration or
Maguire DHCP: Dynamic Host Configuration Protocol (RFC 1531) 4: 35 of 74
maguire@kth.se 2010.03.21 Internetworking/Internetteknik