From 4bfd864f10b68b71482b35c818559068ef8d5797 Mon Sep 17 00:00:00 2001 From: Thomas Voss Date: Wed, 27 Nov 2024 20:54:24 +0100 Subject: doc: Add RFC documents --- doc/rfc/rfc1897.txt | 227 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 227 insertions(+) create mode 100644 doc/rfc/rfc1897.txt (limited to 'doc/rfc/rfc1897.txt') diff --git a/doc/rfc/rfc1897.txt b/doc/rfc/rfc1897.txt new file mode 100644 index 0000000..f93bf3a --- /dev/null +++ b/doc/rfc/rfc1897.txt @@ -0,0 +1,227 @@ + + + + + + +Network Working Group R. Hinden +Request for Comments: 1897 Ipsilon Networks +Category: Experimental J. Postel + ISI + January 1996 + + + IPv6 Testing Address Allocation + +Status of this Memo + + This document specifies an Experimental protocol for the Internet + community. This memo does not specify an Internet standard of any + kind. Discussion and suggestions for improvement are requested. + Distribution of this memo is unlimited. + +1.0 Introduction + + This document describes an allocation plan for IPv6 addresses to be + used in testing IPv6 prototype software. These addresses are + temporary and will be reclaimed in the future. Any IPv6 system using + these addresses will have to renumber at some time in the future. + These addresses will not to be routable in the Internet other than + for IPv6 testing. + + The addresses described in this document are consistent with the IPv6 + Addressing Architecture [ARCH]. They may be assigned to nodes + manually, with IPv6 Auto Address Allocation [AUTO], or with DHCP for + IPv6 [DHCPv6]. + + + + + + + + + + + + + + + + + + + + + + +Hinden & Postel Experimental [Page 1] + +RFC 1897 IPv6 Testing Address Allocation January 1996 + + +2.0 Address Format + + The address format for the IPv6 test address is consistent with the + provider-based unicast address allocation [PRVD] which is as follows: + + | 3 | 5 bits | 16 bits | 8 | 24 bits | 8 | 64 bits | + +---+----------+----------+---+------------+---+----------------+ + |010|RegistryID|ProviderID|RES|SubscriberID|RES|Intra-Subscriber| + +---+----------+----------+---+------------+---+----------------+ + + The specific allocation of each field of the test address format is + as follows: + + | 3 | 5 bits | 16 bits | 8 | 24 bits | 8 | 16 bits|48 bits| + +---+----------+----------+---+------------+---+--------+-------+ + | | |Autonomous| | IPv4 | | Subnet | Intf. | + |010| 11111 | System |RES| Network |RES| | | + | | | Number | | Address | | Address| ID | + +---+----------+----------+---+------------+---+--------+-------+ + + where: + + + 010 + + This is the Format Prefix used to identify provider-based + unicast addresses. + + 11111 + + This is a Registry ID reserved by the IANA. The initial use of + addresses in this Registry ID for IPv6 testing is temporary. + All users of these addresses will be required to renumber at + some time in the future. + + Autonomous System Number + + This is the current autonomous system number assigned to the + provider providing internet service to the an IPv6 testers + organization. For example for IPv6 testers receiving internet + service from BBN Barrnet would use autonomous system number 189. + This would be coded in the autonomous system field of the + address as follows: + + 0000 0000 1011 1101 (binary) + + + + + + +Hinden & Postel Experimental [Page 2] + +RFC 1897 IPv6 Testing Address Allocation January 1996 + + + The values for the autonomous system number of an organization's + provider can be obtained from that provider, or can be looked up + in the "whois" database maintained by the internic.net. + + RES + + This field is reserved and must be set to zero. + + IPv4 Network Address + + This is based on the current IPv4 routable address for the + subscriber which the interface is connected. It is formed by + taking the high order 24 bits of the IPv4 address. For example + for an IPv4 address (in IPv4 syntax): + + IPv4 Address + ------------ + 39.11.22.1 + + the value to put in this field of IPv6 address is: + + IPv4 Format Hex + ------------ ------ + 39.11.22 270B16 + + This technique for generating values for this field only works + for subscribers which have IPv4 subscriber prefixes less than + equal to 24 bits long. There may be subscribers using IPv4 + addresses with longer subscriber prefixes, but this conflict is + expected to be very rare. Subscribers with subscriber prefixes + larger than 24 bits should use the remaining bits in the IPv4 + prefix as the high order bits in the Subnet Address field. + + RES + + This field is reserved and must be set to zero. + + Subnet Address + + The Subnet ID identifies a specific physical link on which the + interface is located. There can be multiple subnets on the same + physical link. A specific subnet can not span multiple physical + links. The assignment of values for this field is left to an + individual subscriber. One possible algorithm to generate + values for this field is to use the bits in the IPv4 address + which identify the IPv4 subnet. + + + + + +Hinden & Postel Experimental [Page 3] + +RFC 1897 IPv6 Testing Address Allocation January 1996 + + + Interface ID + + This is the unique identifier of the interface on the link, + usually the 48-bit IEEE 802 MAC address of the interface if + available. + +4.0 References + + [ARCH] Hinden, R., and S. Deering, Editors, "IP Version 6 + Addressing Architecture", RFC 1884, Ipsilon Networks, Xerox + PARC, December 1995. + + [AUTO] Thomson, S., "IPv6 Stateless Address Autoconfiguration", + Work in Progress. + + [DHCP6] Bound, J., "Host Configuration Protocol for IPv6", Work + in Progress. + + [PROV] Rekhter, Y., and P. Lothberg, "An IPv6 Provider-Based + Unicast Address Format", Work in Progress. + +5.0 Security Considerations + + Security issues are not discussed in this memo. + +6.0 Authors' Addresses + + Robert M. Hinden + Ipsilon Networks, Inc. + 2191 E. Bayshore Road, Suite 100 + Palo Alto, CA 94303 + USA + + Phone: +1 415 846 4604 + Fax: +1 415 855 1414 + EMail: hinden@ipsilon.com + + + Jon Postel + Information Sciences Institute + 4676 Admiralty Way + Marina del Rey, CA 90292-6695 + USA + + Phone: +1 310 822 1511 + Fax: +1 310 823 6714 + EMail: postel@isi.edu + + + + +Hinden & Postel Experimental [Page 4] + -- cgit v1.2.3