Homenet K. Fujiwara Internet-Draft JPRS Intended status: Informational Oct 15, 2012 Expires: April 18, 2013 Smallest home network draft-fujiwara-smallest-homenet-00.txt Abstract This document tries to describe a configuration difficulty of complex networks and two example solutions. Although access control for home servers is very important, managements and setups of access controls are difficult for ordinary users. One of solutions is to limit smallest home network inside a L2 link and the smallest home network uses link-local address only. The other solutions uses ULA (Unique Local Address). Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on April 18, 2013. Copyright Notice Copyright (c) 2012 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of Fujiwara Expires April 18, 2013 [Page 1] Internet-Draft smallest homenet Oct 2012 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Problem statement . . . . . . . . . . . . . . . . . . . . . 3 1.2. Possible solution . . . . . . . . . . . . . . . . . . . . . 3 2. Smallest homenet using Link-Local address . . . . . . . . . . . 3 3. Multiple smallest homenet . . . . . . . . . . . . . . . . . . . 4 4. Security Considerations . . . . . . . . . . . . . . . . . . . . 4 5. IANA considerations . . . . . . . . . . . . . . . . . . . . . . 4 6. Normative References . . . . . . . . . . . . . . . . . . . . . 4 Fujiwara Expires April 18, 2013 [Page 2] Internet-Draft smallest homenet Oct 2012 1. Introduction The homenet architecture [I-D.ietf-homenet-arch] treats large, complex home networks. There may not be network experts to manage home networks. Considering simple and small home network is useful. 1.1. Problem statement The access control to home network servers is very important. Managements and setups of access controls are difficult for ordinary users. "Connecting a new node to the same link", or "connecting a new node to the same link and push a button" are easiest way to configure the new node that can relate the new node with a home server. 1.2. Possible solution According to a home network scale, there are some solutions. o Single link, smallest case: there is a L2 link. Connecting the link means that the new node can access servers. Access control can be attained by using a Link-Local addresses. It is described in Section 2. o Multiple links, using ULA case: Access control can be attained by using a ULA addresses. o Using global address case: It is the same as enterprise network operation. o A few links: multiple smallest case, ULA case, or global address case. 2. Smallest homenet using Link-Local address Suppose there is only a link in a home. It may be common for ordinary users. Link-Local addresses are able to point entities in the network. Servers within the smallest home network serve services to clients using link-local address only. Clients to access the servers are connected the network. Other communications are not affected by this proposal. Smallest homenet server will accept requests from link-local addresses. Smallest homenet server should reject requests from another addresses. Smallest homenet server may act a normal IPv6 client. Smallest homenet clients need to treat link-local address correctly. Fujiwara Expires April 18, 2013 [Page 3] Internet-Draft smallest homenet Oct 2012 They can cache server information with symbolic name and link-local address. They will act as normal IPv6 nodes (They get IPv6 prefixes from CPEs, They can connect to the internet via CPEs). Name resolutions inside the smallest network may be performed by "ICMPv6 Node Information" DNS Name query or another methods. Name resolution in a smallest homenet may be performed by IPv6 Node Information Queries [RFC4620]. The problem is that the protocol is an EXPERIMENTAL. 3. Multiple smallest homenet Smallest homenet servers may have multiple interfaces. 4. Security Considerations 5. IANA considerations 6. Normative References [RFC4620] Crawford, M. and B. Haberman, "IPv6 Node Information Queries", RFC 4620, August 2006. [I-D.ietf-homenet-arch] Chown, T., Arkko, J., Brandt, A., Troan, O., and J. Weil, "Home Networking Architecture for IPv6", draft-ietf-homenet-arch-04 (work in progress), July 2012. Author's Address Kazunori Fujiwara Japan Registry Services Co., Ltd. Chiyoda First Bldg. East 13F, 3-8-1 Nishi-Kanda Chiyoda-ku, Tokyo 101-0065 Japan Phone: +81 3 5215 8451 EMail: fujiwara@wide.ad.jp, fujiwara@jprs.co.jp Fujiwara Expires April 18, 2013 [Page 4]