cmoshos@NRI.Reston.VA.US (Candice Moshos) (04/17/91)
Archive-name: internet/route/draft-tsuchiya-addrtrans/1991-04-16 Archive: nnsc.nsf.net:/internet-drafts/draft-tsuchiya-addrtrans* [192.31.103.6] Original-posting-by: cmoshos@NRI.Reston.VA.US (Candice Moshos) Original-subject: ID ACTION:draft-tsuchiya-addrtrans-00.txt, .ps Reposted-by: emv@msen.com (Edward Vielmetti, MSEN) A New Internet Draft is available from the on-line Internet-Drafts directories. Title : The IP Network Address Translator (Nat): Preliminary Design Author(s) : Paul Tsuchiya Filename : draft-tsuchiya-addrtrans-00.txt, .ps ***Please note that the .txt version does not include figures.*** The two most compelling problems facing the IP Internet are IP address depletion and scaling in routing. This paper discusses the characteristics of one of the proposed solutions-address reuse. The solution is to place Network Address Translators (Nat) at the borders of stub domains. Each Nat box has a small pool of globally unique IP addresses that are dynamically assigned to IP flows going through Nat. The dynamic assignment is coordinated with the Domain Name Servers. The IP addresses inside the stub domain are not globally unique-they are reused in other domains, thus solving the address depletion problem. The pool of IP addresses in Nat is from a subnet administered by the regional backbone, thus solving the scaling problem. The main advantage of Nat is that it can be installed without changes to routers or hosts. This paper presents a preliminary design for Nat, and discusses its pros and cons. Internet-Drafts are available by anonymous FTP. Login with the username "anonymous" and password "guest". After logging in, type "cd internet-drafts". Type "get draft-tsuchiya-addrtrans-00.txt", or type "get draft-tsuchiya-addrtrans-00.ps". Internet-Drafts directories are located at: o NSF Network Service Center (East Coast) Address: nnsc.nsf.net (192.31.103.6) o Defense Data Network NIC (West Coast) Address: nic.ddn.mil (192.67.67.20) o Pacific Rim Address: munnari.oz.au (128.250.1.21) o Nordunet NIC (Europe) Address: nic.nordu.net (192.36.148.17) Internet-Drafts are also available by mail. Send a message to: SERVICE@nic.ddn.mil Subject line: SEND INTERNET-DRAFTS:draft-tsuchiya-addrtrans-00.txt, or SEND INTERNET-DRAFTS:draft-tsuchiya-addrtrans-00.ps For questions, please mail to internet-drafts@nri.reston.va.us. -- comp.archives file verification nnsc.nsf.net -rw-r--r-- 1 8000 guest 86359 Apr 16 00:52 /internet-drafts/draft-tsuchiya-addrtrans-00.ps -rw-r--r-- 1 8000 guest 37146 Apr 16 00:51 /internet-drafts/draft-tsuchiya-addrtrans-00.txt found draft-tsuchiya-addrtrans ok nnsc.nsf.net:/internet-drafts/draft-tsuchiya-addrtrans*