RFC 2132 (rfc2132) - Page 2 of 34
DHCP Options and BOOTP Vendor Extensions
Alternative Format: Original Text Document
RFC 2132 DHCP Options and BOOTP Vendor Extensions March 1997 10. Defining new extensions ................................... 31 11. Acknowledgements .......................................... 31 12. References ................................................ 32 13. Security Considerations ................................... 33 14. Authors' Addresses ........................................ 34 1. Introduction This document specifies options for use with both the Dynamic Host Configuration Protocol and the Bootstrap Protocol. The full description of DHCP packet formats may be found in the DHCP specification document [1], and the full description of BOOTP packet formats may be found in the BOOTP specification document [3]. This document defines the format of information in the last field of DHCP packets ('options') and of BOOTP packets ('vend'). The remainder of this section defines a generalized use of this area for giving information useful to a wide class of machines, operating systems and configurations. Sites with a single DHCP or BOOTP server that is shared among heterogeneous clients may choose to define other, site- specific formats for the use of the 'options' field. Section 2 of this memo describes the formats of DHCP options and BOOTP vendor extensions. Section 3 describes options defined in previous documents for use with BOOTP (all may also be used with DHCP). Sections 4-8 define new options intended for use with both DHCP and BOOTP. Section 9 defines options used only in DHCP. References further describing most of the options defined in sections 2-6 can be found in section 12. The use of the options defined in section 9 is described in the DHCP specification [1]. Information on registering new options is contained in section 10. This document updates the definition of DHCP/BOOTP options that appears in RFC 1533. The classing mechanism has been extended to include vendor classes as described in section 8.4 and 9.13. The new procedure for defining new DHCP/BOOTP options in described in section 10. Several new options, including NIS+ domain and servers, Mobile IP home agent, SMTP server, TFTP server and Bootfile server, have been added. Text giving definitions used throughout the document has been added in section 1.1. Text emphasizing the need for uniqueness of client-identifiers has been added to section 9.14. Alexander & Droms Standards Track
