| draft-ietf-dhc-vpn-option-00.txt | draft-ietf-dhc-vpn-option-01.txt | |||
|---|---|---|---|---|
| Request for Comments: DRAFT Richard Johnson | Request for Comments: DRAFT Richard Johnson | |||
| Kim Kinnear | Kim Kinnear | |||
| Mark Stapp | Mark Stapp | |||
| Jay Kumarasamy | Jay Kumarasamy | |||
| Cisco Systems, Inc. | Cisco Systems, Inc. | |||
| July 2001 | November 2001 | |||
| Expires January 2001 | Expires May 2001 | |||
| DHCP VPN Information option | DHCP VPN Information option | |||
| <draft-ietf-dhc-vpn-option-00.txt> | <draft-ietf-dhc-vpn-option-01.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 | |||
| Task Force (IETF), its areas, and its working groups. Note that | Task Force (IETF), its areas, and its working groups. Note that | |||
| other groups may also distribute working documents as Internet- | other groups may also distribute working documents as Internet- | |||
| Drafts. | Drafts. | |||
| skipping to change at page 2, line 5 | skipping to change at page 2, line 5 | |||
| To learn the current status of any Internet-Draft, please check the | To learn the current status of any Internet-Draft, please check the | |||
| "1id-abstracts.txt" listing contained in the Internet-Drafts Shadow | "1id-abstracts.txt" listing contained in the Internet-Drafts Shadow | |||
| Directories on ds.internic.net (US East Coast), nic.nordu.net | Directories on ds.internic.net (US East Coast), nic.nordu.net | |||
| (Europe), ftp.isi.edu (US West Coast), or munnari.oz.au (Pacific | (Europe), ftp.isi.edu (US West Coast), or munnari.oz.au (Pacific | |||
| Rim). | Rim). | |||
| Copyright Notice | Copyright Notice | |||
| Copyright (C) The Internet Society (2000). All Rights Reserved. | Copyright (C) The Internet Society (2000). All Rights Reserved. | |||
| DRAFT DHCP VPN Information option July 2001 | DRAFT DHCP VPN Information option November 2001 | |||
| Abstract | Abstract | |||
| This memo defines a new DHCP option for passing VPN information | This memo defines a new DHCP option for passing VPN information | |||
| between the DHCP client and the DHCP server. It is intended for use | between the DHCP client and the DHCP server. It is intended for use | |||
| primarily by DHCP proxy clients in situations where VPN information | primarily by DHCP proxy clients in situations where VPN information | |||
| needs to be passed to the DHCP server for proper address allocation | needs to be passed to the DHCP server for proper address allocation | |||
| to take place. | to take place. | |||
| Introduction | Introduction | |||
| skipping to change at page 3, line 5 | skipping to change at page 3, line 5 | |||
| Code Len Type VPN Information octets | Code Len Type VPN Information octets | |||
| +-----+-----+------+-----+-----+-----+--- | +-----+-----+------+-----+-----+-----+--- | |||
| | TBD | n | t | v1 | v2 | v3 | ... | | TBD | n | t | v1 | v2 | v3 | ... | |||
| +-----+-----+------+-----+-----+-----+--- | +-----+-----+------+-----+-----+-----+--- | |||
| Type: 0 NVT ASCII VPN identifier | Type: 0 NVT ASCII VPN identifier | |||
| 1 RFC2685 VPN-ID | 1 RFC2685 VPN-ID | |||
| 2-255 Not Allowed | 2-255 Not Allowed | |||
| DRAFT DHCP VPN Information option July 2001 | DRAFT DHCP VPN Information option November 2001 | |||
| The option minimum length (n) is 2. | The option minimum length (n) is 2. | |||
| There are two types of identifiers which can be placed in the VPN | There are two types of identifiers which can be placed in the VPN | |||
| Information Suboption. The first type of identifier which can be | Information Suboption. The first type of identifier which can be | |||
| placed in the VPN Information Suboption is an NVT ASCII string. It | placed in the VPN Information Suboption is an NVT ASCII string. It | |||
| MUST NOT be terminated with a zero byte. | MUST NOT be terminated with a zero byte. | |||
| The second type of identifier which can be placed in the VPN | The second type of identifier which can be placed in the VPN | |||
| Information Suboption is an RFC2685 VPN-ID [RFC 2685], which is | Information Suboption is an RFC2685 VPN-ID [RFC 2685], which is | |||
| skipping to change at page 4, line 5 | skipping to change at page 4, line 5 | |||
| In the event that a VPN Informmation Option and a VPN Information | In the event that a VPN Informmation Option and a VPN Information | |||
| Relay Suboption are both received in a particular DHCP client packet, | Relay Suboption are both received in a particular DHCP client packet, | |||
| the information from the VPN Information Suboption MUST be used in | the information from the VPN Information Suboption MUST be used in | |||
| preference to the information in the VPN Information Option. | preference to the information in the VPN Information Option. | |||
| Servers that do not understand this option will allocate an address | Servers that do not understand this option will allocate an address | |||
| using their normal algorithms and will not return this option in the | using their normal algorithms and will not return this option in the | |||
| DHCPOFFER or DHCPACK. In this case the client will discard the | DHCPOFFER or DHCPACK. In this case the client will discard the | |||
| DHCPOFFER or DHCPACK. Servers that understand this option but are | DHCPOFFER or DHCPACK. Servers that understand this option but are | |||
| DRAFT DHCP VPN Information option July 2001 | DRAFT DHCP VPN Information option November 2001 | |||
| administratively configured to ignore the option MUST ignore the | administratively configured to ignore the option MUST ignore the | |||
| option, use their normal algorithms to allocate an address, and MUST | option, use their normal algorithms to allocate an address, and MUST | |||
| NOT return this option in the DHCPOFFER or DHCPACK. In this case the | NOT return this option in the DHCPOFFER or DHCPACK. In this case the | |||
| client will discard the DHCPOFFER or DHCPACK. In other words, this | client will discard the DHCPOFFER or DHCPACK. In other words, this | |||
| option MUST not appear in a DHCPOFFER from a server unless it was | option MUST not appear in a DHCPOFFER from a server unless it was | |||
| used by the server in making the address allocation requested. | used by the server in making the address allocation requested. | |||
| Security Considerations | Security Considerations | |||
| skipping to change at page 5, line 5 | skipping to change at page 5, line 5 | |||
| in this document. No assignment of values for the type field need be | in this document. No assignment of values for the type field need be | |||
| made at this time. New values may only be defined by IETF Consensus, | made at this time. New values may only be defined by IETF Consensus, | |||
| as described in [RFC 2434]. Basically, this means that they are | as described in [RFC 2434]. Basically, this means that they are | |||
| defined by RFCs approved by the IESG. | defined by RFCs approved by the IESG. | |||
| Moreover, any changes or additions to the type byte codes MUST be | Moreover, any changes or additions to the type byte codes MUST be | |||
| made concurrently in the type byte codes of the VPN Information | made concurrently in the type byte codes of the VPN Information | |||
| Option. The type bytes and data formats of the VPN Information | Option. The type bytes and data formats of the VPN Information | |||
| Option and VPN Information Suboption MUST always be identical. | Option and VPN Information Suboption MUST always be identical. | |||
| DRAFT DHCP VPN Information option July 2001 | DRAFT DHCP VPN Information option November 2001 | |||
| Acknowledgements | Acknowledgements | |||
| This document is the result of work done within Cisco Systems. | This document is the result of work done within Cisco Systems. | |||
| Thanks to Kim Kinnear, Mark Stapp, and Jay Kumarasamy for their work | Thanks to Kim Kinnear, Mark Stapp, and Jay Kumarasamy for their work | |||
| on this option definition and the other related work for which this | on this option definition and the other related work for which this | |||
| is necessary. | is necessary. | |||
| References | References | |||
| skipping to change at page 6, line 5 | skipping to change at page 6, line 5 | |||
| Mark Stapp | Mark Stapp | |||
| Cisco Systems | Cisco Systems | |||
| 250 Apollo Drive | 250 Apollo Drive | |||
| Chelmsford, MA 01824 | Chelmsford, MA 01824 | |||
| Phone: (978) 244-8000 | Phone: (978) 244-8000 | |||
| EMail: kkinnear@cisco.com | EMail: kkinnear@cisco.com | |||
| mjs@cisco.com | mjs@cisco.com | |||
| DRAFT DHCP VPN Information option July 2001 | DRAFT DHCP VPN Information option November 2001 | |||
| End of changes. | ||||
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