draft-ietf-dhc-dhcpv6-opt-nisconfig-02.txt   draft-ietf-dhc-dhcpv6-opt-nisconfig-03.txt 
Network Working Group A.K. Vijayabhaskar Network Working Group A.K. Vijayabhaskar
Internet-Draft Hewlett-Packard Internet-Draft Hewlett-Packard
Expires: August 26, 2003 26 Feb 2003 Expires: April 16, 2004 15 Oct 2003
NIS Configuration Options for DHCPv6 NIS Configuration Options for DHCPv6
draft-ietf-dhc-dhcpv6-opt-nisconfig-02.txt draft-ietf-dhc-dhcpv6-opt-nisconfig-03.txt
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
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Drafts. Drafts.
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
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This Internet-Draft will expire on August 26, 2003. This Internet-Draft will expire on April 16, 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
This document describes four options for NIS-related configuration This document describes four options for NIS-related configuration
information in DHCPv6: NIS Servers, NIS+ Servers, NIS Client Domain information in DHCPv6: NIS Servers [3], NIS+ Servers [3], NIS Client
Name, NIS+ Client Domain name. Domain Name [3], NIS+ Client Domain name [3].
1. Introduction 1. Introduction
This document describes four options for configuration information This document describes four options for configuration information
related to Network Information Service (NIS) in DHCPv6 [1]. related to Network Information Service (NIS) in DHCPv6 [1].
2. Requirements 2. Requirements
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
document, are to be interpreted as described in RFC 2119 [2] document, are to be interpreted as described in RFC 2119 [2]
3. Terminology 3. Terminology
This document uses terminology specific to IPv6 and DHCPv6 as defined This document uses terminology specific to IPv6 and DHCPv6 as defined
in section "Terminology" of the DHCP specification. in "Terminology" section of the DHCPv6 specification [1].
4. Network Information Service (NIS) Servers option 4. Network Information Service (NIS) Servers option
The Network Information Service Servers option provides a list of The Network Information Service (NIS) [3] Servers option provides a
one or more IP addresses of NIS servers available to the client. The list of one or more IPv6 addresses of NIS servers available to the
NIS servers SHOULD be listed in the order of preference. client. The NIS servers SHOULD be listed in the order of preference.
The format of the Network Information Service Servers option is as The format of the Network Information Service Servers option is as
as shown below: as shown below:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| OPTION_NIS_SERVERS | option-len | | OPTION_NIS_SERVERS | option-len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
| NIS server (IP address) | | NIS server (IPv6 address) |
| | | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
| NIS server (IP address) | | NIS server (IPv6 address) |
| | | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ... | | ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
option-code: OPTION_NIS_SERVERS (tbd) option-code: OPTION_NIS_SERVERS (tbd)
option-len: Length of the 'NIS server' fields in octets; It must be option-len: Length of the 'NIS server' fields in octets; It must be
a multiple of 16 a multiple of 16
NIS server: IP address of NIS server NIS server: IPv6 address of NIS server
5. Network Information Service V2 (NIS+) Servers option 5. Network Information Service V2 (NIS+) Servers option
The Network Information Service V2 (NIS+) Servers option provides The Network Information Service V2 (NIS+) [3] Servers option provides
a list of one or more IP addresses of NIS+ servers available to a list of one or more IPv6 addresses of NIS+ servers available to
the client. The NIS+ servers SHOULD be listed in the order of the client. The NIS+ servers SHOULD be listed in the order of
preference. preference.
The format of the Network Information Service V2 (NIS+) Servers The format of the Network Information Service V2 (NIS+) Servers
option is as shown below: option is as shown below:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| OPTION_NISP_SERVERS | option-len | | OPTION_NISP_SERVERS | option-len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
| NIS+ server (IP address) | | NIS+ server (IPv6 address) |
| | | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
| NIS+ server (IP address) | | NIS+ server (IPv6 address) |
| | | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| ... | | ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
option-code: OPTION_NISP_SERVERS (tbd) option-code: OPTION_NISP_SERVERS (tbd)
option-len: Length of the 'NIS+ server' fields in octets; It must be option-len: Length of the 'NIS+ server' fields in octets; It must be
a multiple of 16 a multiple of 16
NIS+ server: IP address of NIS+ server NIS+ server: IPv6 address of NIS+ server
6. Network Information Service (NIS) Domain Name option 6. Network Information Service (NIS) Domain Name option
The Network Information Service (NIS) Domain Name option is used The Network Information Service (NIS) [3] Domain Name option is used
by the server to convey client's NIS Domain Name info to the by the server to convey client's NIS Domain Name info to the
client. client.
The format of the NIS Domain Name option is as shown below: The format of the NIS Domain Name option is as shown below:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| OPTION_NIS_DOMAIN_NAME | option-len | | OPTION_NIS_DOMAIN_NAME | option-len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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option-len: Length of the 'nis-domain-name' field in octets option-len: Length of the 'nis-domain-name' field in octets
nis-domain-name: NIS Domain name for client nis-domain-name: NIS Domain name for client
The 'nis-domain-name' MUST be encoded as specified in section The 'nis-domain-name' MUST be encoded as specified in section
"Representation and Use of domain names" of the DHCPv6 "Representation and Use of domain names" of the DHCPv6
specification [1]. specification [1].
7. Network Information Service V2 (NIS+) Domain Name option 7. Network Information Service V2 (NIS+) Domain Name option
The Network Information Service V2 (NIS+) Domain Name option is The Network Information Service V2 (NIS+) [3] Domain Name option is
used by the server to convey client's NIS+ Domain Name info to the used by the server to convey client's NIS+ Domain Name info to the
client. client.
The format of the NIS+ Domain Name option is as shown below: The format of the NIS+ Domain Name option is as shown below:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| OPTION_NISP_DOMAIN_NAME | option-len | | OPTION_NISP_DOMAIN_NAME | option-len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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option-code: OPTION_NISP_DOMAIN_NAME (tbd) option-code: OPTION_NISP_DOMAIN_NAME (tbd)
option-len: Length of the 'nisp-domain-name' field in octets option-len: Length of the 'nisp-domain-name' field in octets
nisp-domain-name: NIS+ Domain name for client nisp-domain-name: NIS+ Domain name for client
The 'nisp-domain-name' MUST be encoded as specified in section The 'nisp-domain-name' MUST be encoded as specified in section
"Representation and Use of domain names" of the DHCPv6 "Representation and Use of domain names" of the DHCPv6
specification [1]. specification [1].
8. Appearance of these option 8. Appearance of these options
The NIS servers, NIS+ servers, NIS domain name and NIS+ domain name The NIS servers, NIS+ servers, NIS domain name and NIS+ domain name
options MUST appear only in the following messages: Solicit, options MUST NOT appear in other than the following messages: Solicit,
Advertise, Request, Confirm, Renew, Rebind, Information-Request and Advertise, Request, Renew, Rebind, Information-Request and Reply.
Reply.
The option number for these options MAY appear in the Option Request The option number for these options MAY appear in the Option Request
Option [1] in the following messages: Solicit, Request, Confirm, Renew, Option [1] in the following messages: Solicit, Request, Renew,
Rebind, Information-Request and Reconfigure. Rebind, Information-Request and Reconfigure.
9. Security Considerations 9. Security Considerations
The NIS servers, NIS+ servers, NIS domain name and NIS+ domain name The NIS servers, NIS+ servers, NIS domain name and NIS+ domain name
options may be used by an intruder DHCP server to assign invalid NIS options may be used by an intruder DHCPv6 server to assign invalid
parameters, resulting in clients unable to use NIS. NIS parameters, resulting in clients unable to use NIS service.
To avoid attacks through these options, the DHCP client SHOULD use To avoid attacks through these options, the DHCP client SHOULD use
authenticated DHCP (see section "Authentication of DHCP messages" authenticated DHCP (see section "Authentication of DHCP messages"
in the DHCPv6 specification [1]). in the DHCPv6 specification [1]).
10. IANA Considerations 10. IANA Considerations
IANA is requested to assign an option code to these options from the IANA is requested to assign an option code to the following options
option-code space defined in section "DHCPv6 Options" of the DHCPv6 from the option-code space defined in "DHCPv6 Options" section of the
specification [1]. DHCPv6 specification [1].
Option Name Value Described in
OPTION_NIS_SERVERS tbd Section 4
OPTION_NISP_SERVERS tbd Section 5
OPTION_NIS_DOMAIN_NAME tbd Section 6
OPTION_NISP_DOMAIN_NAME tbd Section 7
11. Normative References 11. Normative References
[1] Bound, J., Carney, M., Perkins, C., Lemon, T., Volz, B. and R. [1] Bound, J., Carney, M., Perkins, C., Lemon, T., Volz, B. and R.
Droms (ed.), "Dynamic Host Configuration Protocol for IPv6 Droms (ed.), "Dynamic Host Configuration Protocol for IPv6
(DHCPv6)", draft-ietf-dhc-dhcpv6-28 (work in progress), November (DHCPv6)", RFC 3315, July 2003.
2002.
12. Informative References 12. Informative References
[2] Bradner, S., "Key words for use in RFCs to Indicate Requirement [2] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997. Levels", BCP 14, RFC 2119, March 1997.
Author's Addresses [3] Sun Microsystems, "System and Network Administration",
March 1990.
Author's Address
Vijayabhaskar A K Vijayabhaskar A K
Hewlett-Packard ESD-I Hewlett-Packard STSD-I
29, Cunningham Road 29, Cunningham Road
Bangalore - 560052 Bangalore - 560052
India India
Phone: +91-80-2053085 Phone: +91-80-2053085
E-Mail: vijayak@india.hp.com E-Mail: vijayak@india.hp.com
Full Copyright Statement Full Copyright Statement
Copyright (C) The Internet Society (2003). All Rights Reserved. Copyright (C) The Internet Society (2003). All Rights Reserved.
skipping to change at page 6, line 37 skipping to change at page 6, line 37
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement Acknowledgement
Funding for the RFC Editor function is currently provided by the Funding for the RFC Editor function is currently provided by the
Internet Society. Thanks to the DHC Working Group for their time and Internet Society. Thanks to the DHC Working Group for their time and
input into the specification. In particular, thanks to Jim Bound and input into the specification. In particular, thanks to (in
Ralph Droms and Bernie Volz for their thorough review. alphabetical order) Bernie Volz, Jim Bound, Ralph Droms and Thomas
Narten for their thorough review.
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