From 2f4b7575b1dbb42acfe3390e5c2264074243d82d Mon Sep 17 00:00:00 2001 From: Mark Andrews Date: Fri, 29 Mar 2002 22:00:45 +0000 Subject: [PATCH] new rev --- ...t => draft-song-dnsext-nai-support-01.txt} | 226 +++++++++++------- 1 file changed, 144 insertions(+), 82 deletions(-) rename doc/draft/{draft-song-dnsext-nai-support-00.txt => draft-song-dnsext-nai-support-01.txt} (54%) diff --git a/doc/draft/draft-song-dnsext-nai-support-00.txt b/doc/draft/draft-song-dnsext-nai-support-01.txt similarity index 54% rename from doc/draft/draft-song-dnsext-nai-support-00.txt rename to doc/draft/draft-song-dnsext-nai-support-01.txt index c8a0fd58fa..c151a5fd52 100644 --- a/doc/draft/draft-song-dnsext-nai-support-00.txt +++ b/doc/draft/draft-song-dnsext-nai-support-01.txt @@ -1,6 +1,5 @@ INTERNET DRAFT JUNHYUK SONG -January 2002 CHAE YOUNG CHONG - SAMSUNG ELECTRONICS. +March 2002 SAMSUNG ELECTRONICS DONGKIE LEE SK TELECOM @@ -8,7 +7,7 @@ January 2002 CHAE YOUNG CHONG DNS RR type for NAI - draft-song-dnsext-nai-support-00.txt + draft-song-dnsext-nai-support-01.txt Status of This Memo @@ -36,8 +35,9 @@ Status of This Memo Abstract - This document proposes the use of the new DNS RR type "NAI" to - specify the most current location of the user(Host IP address). + This document proposes the use of the new DNS RR type "NAI" + (Network Access Identifier) [RFC2486] to specify dynamically assigned + IP address. @@ -53,65 +53,75 @@ Abstract -Song and Lee. Expires July 2002 [Page 1] +Song Expires September 2002 [Page 1] -Internet Draft 4 January 2002 +Internet Draft March 2002 + 1. Introduction - The demand for wireless mobile networking has been dramatically + The use of the wireless mobile networking has been dramatically increased thanks to rapid development of wireless technology and - de facto Mobile IP technology [1]. Therefore, the need for - standardized method of specifying the user over different Internet - Service Providers (ISPs) was identified. NAI is as defined in - RFC-2486 provides the standardized method for identifying users - in order to accomplish the interoperability for roaming and - tunneling over multiple Internet Service Providers (ISPs). - The NAI (Network Access Identifier) is of the form user@realm [3]. - + commercial deployment of Mobile IP technology [RFC3220]. + The most recent release of Mobile IPv4 supports the dynamic Home + Address assignment mechanism that allow MN (Mobile Node) being + identified by NAI (Network Access Identifier) [RFC2486] rather than + static Home IP address. NAI has a prominent role on the mobile + network environment. This is not only because NAI significantly + reduces the IPv4 address shortage problem and but also it provides + the standardized method for identifying users in order to accomplish + the interoperability for roaming over multiple ISPs (Internet Service + Providers). + + The most of the Mobile IPv4 deployment including 3GPP2 CDMA2000 + wireless packet data system architecture [P.S0001-B] identify + the Mobile Node by NAI. Therefore the need for standardized method + of binding the ever changing home address of the MN over various ISPs + to NAI is necessary. + The DNS basically provides a mechanism to map between hostnames and IP address with support of many other RRs thorough hierarchically - built domain names. - - Combining above two, NAI and DNS shall enable IP user mobility [2]. - The IP user mobility is the ability of end user to send and - receive IP datagrams regardless of the location of the mobile - terminal and user location. - - This document specifies a new RR type for NAI, mapping host IP - address and user identifier (NAI) [3]. + built domain names. The NAI is of the form user@realm [RFC2486]. + Adding NAI as a DNS RR shall enable tracking of the dynamically + changed home IP address. This document specifies a new RR type for + NAI, mapping host IP address and user identifier (NAI) [RFC2486]. 2. Applicability Statement - + + Mobile IPv4 is designed to provide the IP mobility that provides + reasonably seamless IP connectivity. Since the MN (Mobile Node) is + no longer necessarily identified by the unique home IP address, + the mechanism for the locating and updating newly assigned home IP + address is required [UM]. + The NAI RR defines user identifier, NAI widely used for PPP dialup connection and Mobile IPv4. The basic idea is to let mobile Internet - user to constantly update its location(IP address), while moving - around multiple access provider network. It can enables - correspondent user to always reach the specific user by querying NAI - to name server, regardless of the location. + user to constantly update its IP address, while moving around + multiple access provider network. It can enables correspondent user + to always reach the specific user by querying NAI to name server, + regardless of the connecting location. It is expected that NAI RR will be used in IRS(Internet Reachability - Service) of 3GPP2 wireless IP network standard [4] (see Appendix A) - and IP user mobility application [5]. Those application depends on - one to one mapping of NAI and mobile host IP address in name server. + Service) of 3GPP2 wireless IP network standard [P.S0001-B] + (see Appendix A). - - - - - - - - - - -Song and Lee. Expires July 2002 [Page 2] +Song Expires September 2002 [Page 2] -Internet Draft 4 January 2002 +Internet Draft March 2002 + + The applications that running on the Dynamic Home Address Allocation + enabled Mobile IPv4 MN (Mobile node) depends on the one to one + mapping of NAI and newly assigned mobile host IP address in DNS name + server for the connectivity with Correspondent nodes. + Because it will be the only way the CN (Correspondent Node) can find + the Mobile Node's newly assigned IP address. An example of + application is including WWW server, IP push service, Instant + Messaging, Multi-user Network games, Multi-chat, etc. + 3. NAI RR Type @@ -134,9 +144,9 @@ Internet Draft 4 January 2002 4. Examples - Resource Record for NAI(junhyuk@samsung.skt.co.kr) is like below: + Resource Record for NAI(junhyuk@xbs.samsung.co.kr) is like below: - junhyuk@.samsung.skt.co.kr. 86400 IN NAI 165.213.221.4 + junhyuk@.xbs.samsung.co.kr. 1440 IN NAI 165.213.221.4 5. IANA Considerations @@ -146,34 +156,24 @@ Internet Draft 4 January 2002 6. Acknowledgements - Special thanks to Prof. Murali Venkatesh of Syracuse University, and - Dr. Woo June Kim + Special thanks to Professor Murali Venkatesh of Syracuse University - - - - - - - - - -Song and Lee. Expires July 2002 [Page 3] +Song Expires September 2002 [Page 3] -Internet Draft 4 January 2002 +Internet Draft March 2002 Appendix A. IRS of 3GPP2 wireless IP Network standard - In this example, we've omitted the detail operation of deleting + In this example, I've omitted the detail operation of deleting DNS record in case of user disconnect. In IRS, it is assumed that MS desires to be reached by a fixed identifier such as an NAI-like hostname @@ -218,10 +218,10 @@ Appendix A. IRS of 3GPP2 wireless IP Network standard -Song and Lee. Expires July 2002 [Page 4] +Song Expires September 2002 [Page 4] -Internet Draft 4 January 2002 +Internet Draft March 2002 @@ -273,29 +273,30 @@ Internet Draft 4 January 2002 -Song and Lee. Expires July 2002 [Page 5] +Song Expires September 2002 [Page 5] -Internet Draft 4 January 2002 +Internet Draft March 2002 References - [1] C. Perkins, Editor. "IP Mobility Support". RFC 2002. October - 1996. + [RFC3220] C. Perkins, Editor. "IP Mobility Support". RFC 3320. + January 2002. - [2] J.H Song, C.Y Chong, DK Lee - "draft-song-network-user-mobility-00.txt + [UM] J.H Song, DK Lee "draft-song-network-user-mobility-00.txt" + Work in Progress - [3] Bernard Aboba and Mark A. Beadles "The Network Access - Identifier". RFC 2486. January 1999. + [RFC2486] Bernard Aboba and Mark A. Beadles "The Network Access + Identifier". RFC 2486. January 1999. - [4] 3GPP2 P.S0001-B work in progress. + [P.S0001-B] 3GPP2 P.S0001-B work in progress. + ftp://ftp.3gpp2.org/TSGP/Standard/ + + - [5] J.H Song and C.Y Chong, DK Lee - "draft-song-mobileip-mipv6-user-mobility-00.txt" @@ -304,13 +305,13 @@ Addresses Questions about this memo can be directed to the authors: - JUNHYUK SONG - CHAEYOUNG CHONG - SAMSUNG ELECTRONICS. - Mobile Development Team - Network Systems Division - Phone: +82-31-279-3639 - Email: santajun@lycos.co.kr + JUNHYUK SONG + SAMSUNG ELECTRONICS. + Packet Technology System Lab. + Mobile Development Team + Phone: +82-31-279-3639 + Email: junhyuk@telecom.samsung.co.kr + santajunman@yahoo.com DONGKIE LEE @@ -322,4 +323,65 @@ Questions about this memo can be directed to the authors: FAX:+82-2-829-4612 -Song and Lee Expires July 2002 [Page 6] \ No newline at end of file + + + + + +Song Expires September 2002 [Page 6] + + +Internet Draft March 2002 + + +Full Copyright Statement + + Copyright (C) The Internet Society (2002). All Rights Reserved. + + This document and translations of it may be copied and furnished to + others, and derivative works that comment on or otherwise explain it + or assist in its implementation may be prepared, copied, published + and distributed, in whole or in part, without restriction of any + kind, provided that the above copyright notice and this paragraph + are included on all such copies and derivative works. However, this + document itself may not be modified in any way, such as by removing + the copyright notice ore references to the Internet Society or other + Internet organizations, except as needed for the purpose of + developing Internet standards in which case the procedures for + copyrights defined in the Internet Standards process must be + followed, or as required to translate it into languages other than + English. + + The limited permissions granted above are perpetual and will not be + revoked by the Internet Society or its successors or assigns. + + This document and the information contained herein is provided on an + "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING + TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING + BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION + HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF + MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + + + + + + + + + + + + + + + + + + + + + + +Song Expires September 2002 [Page 7] + \ No newline at end of file