--- 1/draft-ietf-dhc-unused-optioncodes-03.txt 2006-02-04 23:06:20.000000000 +0100 +++ 2/draft-ietf-dhc-unused-optioncodes-04.txt 2006-02-04 23:06:20.000000000 +0100 @@ -1,17 +1,17 @@ Network Working Group R. Droms Internet-Draft Cisco Systems -Expires: December 6, 2003 June 7, 2003 +Expires: December 26, 2003 June 27, 2003 Unused DHCP Option Codes - draft-ietf-dhc-unused-optioncodes-03 + draft-ietf-dhc-unused-optioncodes-04 Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. @@ -20,64 +20,65 @@ and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. - This Internet-Draft will expire on December 6, 2003. + This Internet-Draft will expire on December 26, 2003. Copyright Notice Copyright (C) The Internet Society (2003). All Rights Reserved. Abstract Prior to the publication of RFC2489 (which was updated by RFC2939), several option codes were assigned to proposed DHCP options that were subsequently never used. This document lists those unused option codes and will be used to confirm that these option codes can be reused for other DHCP options in the future. 1. Introduction This document lists the unused DHCP option codes from the IANA list of BOOTP and DHCP option codes [1]. Each option code includes any known documentation and contact information from the IANA list. -2. Unused Option Codes +2. Unused DHCP Option Codes to be Reassigned to Future DHCP Options The option codes listed in this section are to be returned to IANA - for reassignment to new options. + for reassignment to new options. Responses from associated contact + persons are noted where they have been received. 2.1 Service Location Protocol Naming Authority Code: 80 Name: Service Location Protocol Naming Authority Defined in: (expired Internet-Draft) Contact: Charlie Perkins Reason to recover: Never published as standard and not in general use 2.2 Relay Agent Options Codes: 83, 84 Name: Relay Agent Options - Defined in: Early draft of RFC3046 [2] + Defined in: Early draft of RFC3046 [4] Contact: (none) Reason to recover: Not defined in RFC3046 as published 2.3 IEEE 1003.1 POSIX Timezone Code: 88 Name: IEEE 1003.1 POSIX Timezone @@ -84,25 +85,27 @@ Defined in: (expired Internet-Draft) Contact: Mike Carney Reason to recover: Never published as standard and not in general use 2.4 FQDNs in DHCP Options Code: 89 + Name: FQDNs in DHCP Options Defined in: (expired Internet-Draft) - Contact: Ralph Droms + Contact: Ralph Droms; agrees that option code should be + reassigned Reason to recover: Never published as standard and not in general use 2.5 VINES TCP/IP Server Code: 91 Name: VINES TCP/IP Server Defined in: (none) @@ -136,21 +138,22 @@ Reason to recover: Never published as Internet-Draft 2.8 IPv6 Transition Code: 96 Name: IPv6 Transition Defined in: (expired Internet-Draft) - Contact: Dan Harrington + Contact: Dan Harrington; agrees that option code should be + reassigned Reason to recover: Never published as standard and not in general use 2.9 Printer Name Code: 100 Name: Printer Name Defined in: (none) @@ -183,21 +187,22 @@ Reason to recover: Never published as Internet-Draft 2.12 IPX Compatibility Code: 110 Name: IPX Compatibility Defined in: (none) - Contact: Juan Luciani + Contact: Juan Luciani; agress that option code should be + reassigned Reason to recover: Never published as Internet-Draft 2.13 Netinfo Parameters Codes: 112, 113 Name: Netinfo Address, Netinfo Tag Defined in: (none) @@ -206,142 +211,148 @@ Reason to recover: Never published as Internet-Draft 2.14 URL Code: 114 Name: URL Defined in: (none) - Contact: Vinod Valloppillil Reason to recover: Never published as Internet-Draft 2.15 Failover Code: 115 Name: Failover - Defined in: Early revisions of "DHCP Failover Protocol" [3] + + Defined in: Early revisions of "DHCP Failover Protocol" [5] Contact: Kim Kinnear Reason to recover: Current version of "DHCP Failover Protocol" does not use a DHCP option 3. Option codes used in PXE Specification The following option codes are used in the "Preboot Execution - Environment (PXE) Specification, Version 2.1" [4]. However, although + Environment (PXE) Specification, Version 2.1" [2]. However, although these options are in widespread use by devices that use PXE, none of - these option codes have been specified as a Standards-track RFC. + these option codes have been described in a published RFC. The dhc WG will endeavor to have specifications for these options published. 3.1 Client System Code: 93 Name: Client System - Defined in: (none) + Defined in: "Preboot Execution Environment (PXE) + Specification, Version 2.1" [2] - Contact: (none) + Contact: Michael Johnston 3.2 Client NDI Code: 94 Name: Client NDI - Defined in: (none) + Defined in: "Preboot Execution Environment (PXE) + Specification, Version 2.1" [2] - Contact: (none) + Contact: Michael Johnston 3.3 UUID/GUID Client Identifier Code: 97 Name: UUID/GUID Client Identifier - Defined in: (expired Internet-Draft) - Contact: Dan Harrington + Defined in: "Preboot Execution Environment (PXE) + Specification, Version 2.1" [2] (and an expired Internet-Draft) + + Contact: Dan Harrington, Michael Johnston 4. Option Code Extensions Note that these option codes are identified in draft-volz-dhc- - extended-optioncodes-00 [5] as part of a mechanism for extending the + extended-optioncodes-00 [3] as part of a mechanism for extending the set of option codes available to DHCP. If these option codes are not used for DHCP option code extension, they will be returned to IANA for reassignment to other DHCP options. Codes: 126, 127 Name: Option Code Extensions Defined in: (expired Internet-Draft) Contact: Ralph Droms Reason to recover: Never published as standard; note that these - option codes are mentioned in "Extending DHCP Options Codes" [5]. + option codes are mentioned in "Extending DHCP Options Codes" [3]. 5. Already Returned for Reassignment The option codes 99, 102-107, 109 and 111 have already been returned for reassignment to future DHCP options. 6. IANA Considerations When this document has been published as an Informational RFC, IANA will be requested to return the unused DHCP option codes to the list of available option codes. These option codes may be reassigned to new DHCP options, according to the procedures in RFC 2939 [6]. Normative References [1] Assigned Numbers Editor, IANA., "BOOTP and DHCP Parameters", http://www.iana.org/assignments/bootp-dhcp-parameters, February 2003. - [2] Patrick, M., "DHCP Relay Agent Information Option", RFC 3046, - January 2001. - - [3] Droms, R., Kinnear, K., Stapp, M., Volz, B., Gonczi, S., Rabil, - G., Dooley, M. and A. Kapur, "DHCP Failover Protocol", draft- - ietf-dhc-failover-12.txt (work in progress), November 2002. - - [4] Intel Corporation, , "Preboot Execution Environment (PXE) + [2] Intel Corporation, "Preboot Execution Environment (PXE) Specification Version 2.1", http://www.pix.net/software/pxeboot/archive/pxespec.pdf, September 1999. - [5] Volz, B., Droms, R. and T. Lemon, "Extending DHCP Options + [3] Volz, B., Droms, R. and T. Lemon, "Extending DHCP Options Codes", draft-volz-dhc-extended-optioncodes-00.txt (work in progress), September 2000. +Informative References + + [4] Patrick, M., "DHCP Relay Agent Information Option", RFC 3046, + January 2001. + + [5] Droms, R., Kinnear, K., Stapp, M., Volz, B., Gonczi, S., Rabil, + G., Dooley, M. and A. Kapur, "DHCP Failover Protocol", draft- + ietf-dhc-failover-12.txt (work in progress), November 2002. + [6] Droms, R., "Procedures and IANA Guidelines for Definition of New DHCP Options and Message Types", BCP 43, RFC 2939, September 2000. Author's Address Ralph Droms Cisco Systems - 250 Apollo Drive - Chelmsford, MA 01824 + 1414 Massachusetts Avenue + Boxborough, MA 01719 USA - Phone: +1 978 497 4733 + Phone: +1 978 936 1674 EMail: rdroms@cisco.com Full Copyright Statement Copyright (C) The Internet Society (2003). All Rights Reserved. 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