draft-ietf-dhc-unused-optioncodes-06.txt		draft-ietf-dhc-unused-optioncodes-07.txt
	Network Working Group R. Droms		IPv6 Group R. Droms
	Internet-Draft Cisco Systems		Internet-Draft Cisco Systems
	Expires: February 10, 2004 August 12, 2003		Expires: April 2, 2004 October 3, 2003
	Unused DHCP Option Codes		Unused DHCP Option Codes
	draft-ietf-dhc-unused-optioncodes-06		draft-ietf-dhc-unused-optioncodes-07
	Status of this Memo		Status of this Memo
	This document is an Internet-Draft and is in full conformance with		This document is an Internet-Draft and is in full conformance with
	all provisions of Section 10 of RFC2026.		all provisions of Section 10 of RFC2026.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF), its areas, and its working groups. Note that		Task Force (IETF), its areas, and its working groups. Note that other
	other groups may also distribute working documents as Internet-		groups may also distribute working documents as Internet-Drafts.
	Drafts.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at http://
	http://www.ietf.org/ietf/1id-abstracts.txt.		www.ietf.org/ietf/1id-abstracts.txt.
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
	This Internet-Draft will expire on February 10, 2004.		This Internet-Draft will expire on April 2, 2004.
	Copyright Notice		Copyright Notice
	Copyright (C) The Internet Society (2003). All Rights Reserved.		Copyright (C) The Internet Society (2003). All Rights Reserved.
	Abstract		Abstract
	Prior to the publication of RFC2489 (which was updated by RFC2939),		Prior to the publication of RFC2489 (which was updated by RFC2939),
	several option codes were assigned to proposed DHCP options that were		several option codes were assigned to proposed DHCP options that were
	subsequently never used. This document lists those unused option		subsequently never used. This document lists those unused option
	skipping to change at page 3, line 4		skipping to change at page 2, line 46
	Defined in: Early draft of RFC3046 [2]		Defined in: Early draft of RFC3046 [2]
	Contact: (none)		Contact: (none)
	Reason to recover: Not defined in RFC3046 as published		Reason to recover: Not defined in RFC3046 as published
	2.3 IEEE 1003.1 POSIX Timezone		2.3 IEEE 1003.1 POSIX Timezone
	Code: 88		Code: 88
	Name: IEEE 1003.1 POSIX Timezone
			Name: IEEE 1003.1 POSIX Timezone
	Defined in: (expired Internet-Draft)		Defined in: (expired Internet-Draft)
	Contact: Mike Carney		Contact: Mike Carney
	Reason to recover: Never published as standard and not in general use		Reason to recover: Never published as standard and not in general use
	2.4 FQDNs in DHCP Options		2.4 FQDNs in DHCP Options
	Code: 89		Code: 89
	skipping to change at page 4, line 5		skipping to change at page 4, line 5
	Code: 92		Code: 92
	Name: Server Selection		Name: Server Selection
	Defined in: (none)		Defined in: (none)
	Contact: (none)		Contact: (none)
	Reason to recover: Never published as Internet-Draft		Reason to recover: Never published as Internet-Draft
	2.7 LDAP Servers		2.7 IPv6 Transition
	Code: 95
	Name: LDAP Servers
	Defined in: (none)
	Contact: (none)
	Reason to recover: Never published as Internet-Draft
	2.8 IPv6 Transition
	Code: 96		Code: 96
	Name: IPv6 Transition		Name: IPv6 Transition
	Defined in: (expired Internet-Draft)		Defined in: (expired Internet-Draft)
	Contact: Dan Harrington; agrees that option code should be		Contact: Dan Harrington; agrees that option code should be
	reassigned		reassigned
	Reason to recover: Never published as standard and not in general use		Reason to recover: Never published as standard and not in general use
	2.9 Printer Name		2.8 Printer Name
	Code: 100		Code: 100
	Name: Printer Name		Name: Printer Name
	Defined in: (none)		Defined in: (none)
	Contact: (none)		Contact: (none)
	Reason to recover: Never published as Internet-Draft		Reason to recover: Never published as Internet-Draft
	2.10 Multicast Assignment through DHCP		2.9 Multicast Assignment through DHCP
	Code: 101		Code: 101
	Name: Multicast Assignment through DHCP		Name: Multicast Assignment through DHCP
	Defined in: (expired Internet-Draft)		Defined in: (expired Internet-Draft)
	Contact: Baiju Patel, Munil Shah		Contact: Baiju Patel, Munil Shah
	Reason to recover: Never published as standard and not in general use		Reason to recover: Never published as standard and not in general use
	2.11 Swap Path		2.10 Swap Path
	Code: 108		Code: 108
	Name: Swap Path		Name: Swap Path
	Defined in: (none)		Defined in: (none)
	Contact: (none)		Contact: (none)
	Reason to recover: Never published as Internet-Draft		Reason to recover: Never published as Internet-Draft
	2.12 IPX Compatibility		2.11 IPX Compatibility
	Code: 110		Code: 110
	Name: IPX Compatibility		Name: IPX Compatibility
	Defined in: (none)		Defined in: (none)
	Contact: Juan Luciani; agrees that option code should be		Contact: Juan Luciani; agrees that option code should be
	reassigned		reassigned
	Reason to recover: Never published as Internet-Draft		Reason to recover: Never published as Internet-Draft
	2.13 Netinfo Parameters		2.12 Failover
	Codes: 112, 113
	Name: Netinfo Address, Netinfo Tag
	Defined in: (none)
	Contact: Marc Majka
	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		Code: 115
	Name: Failover		Name: Failover
	Defined in: Early revisions of "DHCP Failover Protocol" [3]		Defined in: Early revisions of "DHCP Failover Protocol" [3]
	Contact: Kim Kinnear		Contact: Kim Kinnear
	Reason to recover: Current version of "DHCP Failover Protocol" does		Reason to recover: Current version of "DHCP Failover Protocol" does
	skipping to change at page 7, line 4		skipping to change at page 6, line 11
	Environment (PXE) Specification, Version 2.1" [4]. However, although		Environment (PXE) Specification, Version 2.1" [4]. However, although
	these options are in widespread use by devices that use PXE, none of		these options are in widespread use by devices that use PXE, none of
	these option codes have been described in a published RFC.		these option codes have been described in a published RFC.
	The dhc WG will endeavor to have specifications for these options		The dhc WG will endeavor to have specifications for these options
	published.		published.
	3.1.1 Client System		3.1.1 Client System
	Code: 93		Code: 93
	Name: Client System		Name: Client System
	Defined in: "Preboot Execution Environment (PXE)		Defined in: "Preboot Execution Environment (PXE)
	Specification, Version 2.1" [4]		Specification, Version 2.1" [4]
	Contact: Michael Johnston (frenchy@quiet-like-a-		Contact: Michael Johnston
	panther.org)		(frenchy@quiet-like-a-panther.org)
	3.1.2 Client NDI		3.1.2 Client NDI
	Code: 94		Code: 94
	Name: Client NDI		Name: Client NDI
	Defined in: "Preboot Execution Environment (PXE)		Defined in: "Preboot Execution Environment (PXE)
	Specification, Version 2.1" [4]		Specification, Version 2.1" [4]
	Contact: Michael Johnston (frenchy@quiet-like-a-		Contact: Michael Johnston
	panther.org)		(frenchy@quiet-like-a-panther.org)
	3.1.3 UUID/GUID Client Identifier		3.1.3 UUID/GUID Client Identifier
	Code: 97		Code: 97
	Name: UUID/GUID Client Identifier		Name: UUID/GUID Client Identifier
	Defined in: "Preboot Execution Environment (PXE)		Defined in: "Preboot Execution Environment (PXE)
	Specification, Version 2.1" [4] (and an expired Internet-Draft)		Specification, Version 2.1" [4] (and an expired Internet-Draft)
	Contact: Dan Harrington, Michael Johnston (frenchy@quiet-		Contact: Dan Harrington, Michael Johnston
	like-a-panther.org)		(frenchy@quiet-like-a-panther.org)
	3.2 Option Code Extensions		3.2 In Use by Apple
			The following option codes are used by devices from Apple Computer.
			However, none of these option codes have been described in a
			published RFC.
			The dhc WG will endeavor to have specifications for these options
			published.
			3.2.1 LDAP Servers
			Code: 95
			Name: LDAP Servers
			Defined in: (none)
			Contact: Dieter Siegmund, dieter@apple.com
			Reason to recover: Never published in an RFC
			3.2.2 Netinfo Parameters
			Codes: 112, 113
			Name: Netinfo Address, Netinfo Tag
			Defined in: (none)
			Contact: Dieter Siegmund, dieter@apple.com
			Reason to recover: Never published in an RFC
			3.2.3 URL
			Code: 114
			Name: URL
			Defined in: (none)
			Contact: Dieter Siegmund, dieter@apple.com
			Reason to recover: Never published in an RFC
			3.3 Option Code Extensions
	Note that these option codes are identified in "Extending DHCP		Note that these option codes are identified in "Extending DHCP
	Options Codes" [5] as part of a mechanism for extending the set of		Options Codes" [5] as part of a mechanism for extending the set of
	option codes available to DHCP. If these option codes are not used		option codes available to DHCP. If these option codes are not used
	for DHCP option code extension, they will be returned to IANA for		for DHCP option code extension, they will be returned to IANA for
	reassignment to other DHCP options.		reassignment to other DHCP options.
	Codes: 126, 127		Codes: 126, 127
	Name: Option Code Extensions		Name: Option Code Extensions
	skipping to change at page 8, line 21		skipping to change at page 8, line 29
	5. Security Considerations		5. Security Considerations
	This document has no known security implications, as none of the		This document has no known security implications, as none of the
	reclaimed options are known to be in use.		reclaimed options are known to be in use.
	6. IANA Considerations		6. IANA Considerations
	IANA has returned the DHCP option codes listed in Section 2 to the		IANA has returned the DHCP option codes listed in Section 2 to the
	list of available option codes. These option codes may be reassigned		list of available option codes. These option codes may be reassigned
	to new DHCP options, according to the procedures in RFC 2939 [6].		to new DHCP options, according to the procedures in RFC 2939 [6].
			IANA is requested to reassign these option codes after the list of
			option codes that have never been assigned or have previously been
			returned has been exhausted.
	Informative References		Informative References
	[1] Assigned Numbers Editor, IANA., "BOOTP and DHCP Parameters",		[1] Assigned Numbers Editor, IANA., "BOOTP and DHCP Parameters",
	http://www.iana.org/assignments/bootp-dhcp-parameters,		http://www.iana.org/assignments/bootp-dhcp-parameters,
	February 2003.		February 2003.
	[2] Patrick, M., "DHCP Relay Agent Information Option", RFC 3046,		[2] Patrick, M., "DHCP Relay Agent Information Option", RFC 3046,
	January 2001.		January 2001.
	[3] Droms, R., Kinnear, K., Stapp, M., Volz, B., Gonczi, S., Rabil,		[3] Droms, R., Kinnear, K., Stapp, M., Volz, B., Gonczi, S., Rabil,
	G., Dooley, M. and A. Kapur, "DHCP Failover Protocol", draft-		G., Dooley, M. and A. Kapur, "DHCP Failover Protocol",
	ietf-dhc-failover-12.txt (work in progress), November 2002.		draft-ietf-dhc-failover-12.txt (work in progress), November
			2002.
	[4] Intel Corporation, , "Preboot Execution Environment (PXE)		[4] Intel Corporation, "Preboot Execution Environment (PXE)
	Specification Version 2.1",		Specification Version 2.1", http://www.pix.net/software/pxeboot/
	http://www.pix.net/software/pxeboot/archive/pxespec.pdf,		archive/pxespec.pdf, September 1999.
	September 1999.
	[5] Volz, B., Droms, R. and T. Lemon, "Extending DHCP Options		[5] Volz, B., Droms, R. and T. Lemon, "Extending DHCP Options
	Codes", draft-volz-dhc-extended-optioncodes-00.txt (work in		Codes", draft-volz-dhc-extended-optioncodes-00.txt (work in
	progress), February 2003.		progress), February 2003.
	[6] Droms, R., "Procedures and IANA Guidelines for Definition of New		[6] Droms, R., "Procedures and IANA Guidelines for Definition of New
	DHCP Options and Message Types", BCP 43, RFC 2939, September		DHCP Options and Message Types", BCP 43, RFC 2939, September
	2000.		2000.
	Author's Address		Author's Address
	Ralph Droms		Ralph Droms
	Cisco Systems		Cisco Systems
	1414 Massachusetts Avenue		1414 Massachusetts Avenue
	Boxborough, MA 01719		Boxborough, MA 01719
	USA		USA
	Phone: +1 978 936 1674		Phone: +1 978 936 1674
	EMail: rdroms@cisco.com		EMail: rdroms@cisco.com
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