Network Working Group R. Barnes Internet-Draft M. Lepinski Intended status: Informational BBN Technologies Expires: January 10, 2013 A. Cooper Center for Democracy & Technology O. Kolkman NLnet Labs July 9, 2012 Technical Considerations for Internet Service Blocking draft-barnes-blocking-considerations-00.txt Abstract The Internet is structured to be an open communications medium. This openness is one of the key underpinnings of Internet innovation, but it can allow bad communications as well as good. Thus, as the Internet has grown, so have mechanisms to limit the extent and impact of abusive or illegal communications. Recently, there has been an increasing emphasis on "blocking", the active prevention of abusive or illegal communications. This document examines several technical approaches to Internet service blocking in terms of their fit with the overall Internet architecture. In general, the approach to service blocking that is most coherent with the Internet architecture is to inform endpoints about bad services, so that the communicants can avoid engaging in abusive or illegal communications. 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 January 10, 2013. Copyright Notice Barnes, et al. Expires January 10, 2013 [Page 1] Internet-Draft Blocking Considerations July 2012 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 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Architectural Principles . . . . . . . . . . . . . . . . . . . 3 3. Examples of Blocking . . . . . . . . . . . . . . . . . . . . . 3 4. Blocking Design Patterns . . . . . . . . . . . . . . . . . . . 3 5. Summary of Trade-offs and Applicability . . . . . . . . . . . . 3 6. Security Considerations . . . . . . . . . . . . . . . . . . . . 3 7. Informative References . . . . . . . . . . . . . . . . . . . . 3 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 4 Barnes, et al. Expires January 10, 2013 [Page 2] Internet-Draft Blocking Considerations July 2012 1. Introduction [[ This document is a placeholder, pending submission of a revised version in time for the revised draft deadline. ]] [[ TODO ]] 2. Architectural Principles [[ TODO ]] 3. Examples of Blocking [[ TODO ]] 4. Blocking Design Patterns [TODO] 5. Summary of Trade-offs and Applicability [[ TODO ]] 6. Security Considerations [[ TODO ]] 7. Informative References [RFC2775] Carpenter, B., "Internet Transparency", RFC 2775, February 2000. [RFC3724] Kempf, J., Austein, R., and IAB, "The Rise of the Middle and the Future of End-to-End: Reflections on the Evolution of the Internet Architecture", RFC 3724, March 2004. [RFC4084] Klensin, J., "Terminology for Describing Internet Connectivity", BCP 104, RFC 4084, May 2005. [RFC4924] Aboba, B. and E. Davies, "Reflections on Internet Transparency", RFC 4924, July 2007. Barnes, et al. Expires January 10, 2013 [Page 3] Internet-Draft Blocking Considerations July 2012 Authors' Addresses Richard Barnes BBN Technologies 1300 N. 17th St Arlington, VA 22209 USA Phone: +1 703 284 1340 Email: rbarnes@bbn.com Matt Lepinski BBN Technologies 10 Moulton St Cambridge, MA 02138 USA Phone: +1 617 873 5939 Email: mlepinski@bbn.com Alissa Center for Democracy & Technology Olaf NLnet Labs Barnes, et al. Expires January 10, 2013 [Page 4]