Community Connectivity: Building the Internet from Scratch
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A Letter to the FCC [PDF]
Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC 20554 In the Matter of ) ) Amendment of Part 0, 1, 2, 15 and 18 of the ) ET Docket No. 15170 Commission’s Rules regarding Authorization ) Of Radio frequency Equipment ) ) Request for the Allowance of Optional ) RM11673 Electronic Labeling for Wireless Devices ) Summary The rules laid out in ET Docket No. 15170 should not go into effect as written. They would cause more harm than good and risk a significant overreach of the Commission’s authority. Specifically, the rules would limit the ability to upgrade or replace firmware in commercial, offtheshelf home or smallbusiness routers. This would damage the compliance, security, reliability and functionality of home and business networks. It would also restrict innovation and research into new networking technologies. We present an alternate proposal that better meets the goals of the FCC, not only ensuring the desired operation of the RF portion of a WiFi router within the mandated parameters, but also assisting in the FCC’s broader goals of increasing consumer choice, fostering competition, protecting infrastructure, and increasing resiliency to communication disruptions. If the Commission does not intend to prohibit the upgrade or replacement of firmware in WiFi devices, the undersigned would welcome a clear statement of that intent. Introduction We recommend the FCC pursue an alternative path to ensuring Radio Frequency (RF) compliance from WiFi equipment. We understand there are significant concerns regarding existing users of the WiFi spectrum, and a desire to avoid uncontrolled change. However, we most strenuously advise against prohibiting changes to firmware of devices containing radio components, and furthermore advise against allowing nonupdatable devices into the field. -
Report on Existing Community Networks and Their Organization
Ref. Ares(2016)5891410 - 12/10/2016 Horizon 2020 Project title: Network Infrastructure as Commons Report on Existing Community Networks and their Organization Deliverable number: D1.2 Version 1.0 Co-Funded by the Horizon 2020 programme of the European Union Grant Number 688768 Project Acronym: netCommons Project Full Title: Network Infrastructure as Commons. Call: H2020-ICT-2015 Topic: ICT-10-2015 Type of Action: RIA Grant Number: 688768 Project URL: http://netcommons.eu Editor: Leandro Navarro, Universitat Politecnica` de Catalunya (UPC) Deliverable nature : Report (R) Dissemination level: Public (PU) Contractual Delivery Date: September 30, 2016 Actual Delivery Date: October 12, 2016 Number of pages: 104 (excluding covers) Keywords: Community Networks, Organizational models, Commons, Common-Pool Resources, Sustainability, Adaptability Authors: Leandro Navarro - Roger Baig, UPC Felix Freitag - Emmanouil Dimogerontakis, UPC Felix´ Treguer´ - Melanie´ Dulong de Rosnay, ISCC CNRS Leonardo Maccari, UniTN Panagiota Micholia, AUEB Panayotis Antoniadis, Nethood Peer review: Merkouris Karaliopoulos, AUEB Renato Lo Cigno, UniTN Executive Summary This deliverable is devoted to build a homogeneous mapping of the Community Networks netCom- mons is working (or intends to work) with in Europe, plus a general overview of the many facets of the Community Network concept around the world, with the goal of providing a sort of taxonomy plus a rough global quantification of the phenomenon. For the development of the analysis framework we have worked in close collaboration with a few of the Community Networks (CNs) that are most representative and more relevant, one way or another, to the netCommons project. This report builds on and extends D1.1 (M6) with further elements of commons theory, more details and coverage of additional CNs, a mapping of CN web sites to show the inter-relations among them, a typology of international CNs, and a expanded taxonomy for comparison and typology. -
Cooperation in Open, Decentralized, and Heterogeneous Computer Networks
Cooperation in Open, Decentralized, and Heterogeneous Computer Networks Axel Neumann PhD Thesis by the Universitat Polit`ecnicade Catalunya Advisors: Leandro Navarro Llorenc¸Cerda-Alabern` Barcelona, Spain 2017 Cooperation in Open, Decentralized, and Heterogeneous Computer Networks. September 2017. Axel Neumann [email protected] Computer Networks and Distributed Systems Group Universitat Polit`ecnicade Catalunya Jordi Girona 1-3 C6, D6 08034 - Barcelona, Spain This dissertation is available on-line at the Theses and Dissertations On-line (TDX) repository, which is coordinated by the Consortium of Academic Libraries of Catalonia (CBUC) and the Supercomputing Centre of Catalonia Consortium (CESCA), by the Catalan Ministry of Universities, Research and the Information Society. The TDX repository is a member of the Networked Digital Library of Theses and Dissertations (NDLTD) which is an international organisation dedicated to promoting the adoption, creation, use, dissemination and preservation of electronic analogues to the traditional paper-based theses and dissertations This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA. Acknowledgments I am so much grateful to my advisors, Leandro Navarro and Lloren¸cCerd`a-Alabern. Without their endless patience, guidance and support, this work would simply have been impossible. I would like to thank all the people and communities that stimulated and inspired this work Roger Baig (Guifi.net), Pau Escrich (Guifi.net, Libremesh.org), Roger P. Centelles (Guifi.net), Agusti Moll (Guifi.net), Thank you for all the dedication brought up for the idea of community networks. -
Simulating a City-Scale Community Network: from Models to First Improvements for Freifunk
Simulating a City-Scale Community Network: From Models to First Improvements for Freifunk Tobias Hardes, Falko Dressler and Christoph Sommer Distributed Embedded Systems Group, Dept. of Computer Science, University of Paderborn, Germany {tobias.hardes,dressler,sommer}@ccs-labs.org Abstract—Community networks establish a wireless mesh In this paper, we focus on the Freifunk community network network among citizens, providing a network that is independent, initiative, which is composed of a few hundred local commu- free, and (in some cases) available where regular Internet access nities, each serving from few dozens to thousands of nodes. In is not. Following initial disappointments with their performance and availability, they are currently experiencing a second spring. particular, we concentrate on the Freifunk community network Many of these networks are growing fast, but with little planning composed of approximately 800 routers (nodes) in the city and limited oversight. Problems mostly manifest as limited of Paderborn. This community network, like most Freifunk scalability of the network – as has happened in the Freifunk networks, employs the Batman [5] protocol (specifically, mesh network operating in the city of Paderborn (approx. 800 BATMAN IV) to operate its mesh network and allows anyone to nodes running the BATMAN IV protocol with control messages alone accounting for 25 GByte per month and node). In this join as a user, simply by connecting their laptop to a Freifunk work, we detail how we modeled this real-life network in a node via WiFi. Like many, it suffered from scalability problems. computer simulation as a way of allowing rapid (and worry We tackle the investigation of these problems by providing a free) experimentation with maximum insight. -
Llicències Lliures I Obertes Autoria: Wouter Tebbens (FKI), David Gómez (FKI) Versió 1.0
Taller de Cooperativisme de plataforma Llicències lliures i obertes Autoria: Wouter Tebbens (FKI), David Gómez (FKI) Versió 1.0 CONTINGUTS CONCEPTES CLAU En aquest mòdul tractem les polítiques per compartir el coneixement i especialment les ● Domini públic pràctiques per fer servir llicències públiques, com ● Tots els drets reservats les obertes i les lliures. Repassem aquesta tradició i ● Llicència pública veiem la seva aplicació en els mons del software, ● Llicències lliures: Copyleft / Permissiu les obres culturals, educatius, de disseny i de les ● Llicències obertes, incl. CopyFair dades. ● Drets morals Els “drets d’autor” són una forma de protecció legal sobre la propietat intel·lectual que donen drets exclusius als autors d’obres que passen un llindar d’originalitat per decidir què es pot fer amb elles. No protegeixen una idea sinó la plasmació d’aquesta. Es distingeixen dos tipus de drets: ● Drets morals o extrapatrimonials (intransferibles, inalienables, no es poden cedir): reconeixement de l’autoria, integritat de l’obra, accés a l’exemplar rar, entre altres. ● Dets patrimonials o d’explotació (transferibles, es poden cedir): reproducció, comunicació pública, transformació. L’autor pot cedir els drets patrimonials de forma exclusiva o parcial a tercers a través d’un contracte o cedint-los a una societat de gestió de drets. Una altra manera és acompanyar l’obra amb un permís d’ús o llicència pública. En el context d’una producció col·laborativa en xarxa la necessitat de negociar la cessió amb cada autor d’una contribució o amb el titular a qui aquest ha cedit els drets fa inviable el procés de co-producció, fins i tot si no hi ha retribució, ja que cal contactar, negociar i elaborar contractes costosos. -
Decentralized Administration Concepts for Wireless Community Mesh Networks
Decentralized administration concepts for wireless community mesh networks Thomas Huehn‡ ‡Deutsche Telekom Laboratories, TU Berlin, Berlin, Germany {[email protected]} Abstract—The lack of widely available broadband internet mesh network has two main clouds per village with a high access available in all parts of Germany was the main motivation density of nodes running all on the same channel, channel to build community mesh networks to share ADSL lines. As many 1 (2412 GHz) in 802.11g-only mode. All mesh nodes are are unable to easily obtain an ADSL line, we built a wireless mesh network covering our two home villages. Singe we began, we equipped with an omni-directional antenna mounted to be have included 60 households running their own 802.11 wireless outside of the roof. A singe ADSL line, serving 6000 kBit/sec routers based on commodity hardware on rooftops within the downstream and 520 kBit/sec upstream, is the only Internet unlicensed 2,4 GHz frequency band. But how would someone gateway we are currently using and sharing between us. The administrate such a network consisting of 60 different ”micro” Fig. 1 represents the topology snapshot from 28th of April 09 providers without having a central administration instance? This paper describes the mechanisms that make our decentralized based on OLSR [2] routing table calculations. administration concept a trust-based, efficient, and scalable so- lution for community mesh networks. We then describe the main concepts of how to deploy new OpenWRT based firmware-images in a decentralized manner. We then detail the most challenging aspect of the project, granting access for mobile devices among the entire mesh distributed among the node owners. -
Open Networks Author: Diarmuid Ó Briain 2 Open Networks
Open Networks Author: Diarmuid Ó Briain 2 Open Networks Diarmuid Ó Briain Diarmuid is a Chartered Engineer (CEng) with experience in Telecommunications, Information Networking and Security. He has designed and implemented next-generation networks and information security solutions for major multi- national communications companies as well as an Irish Internet Service Provider. He has also lectured on Telecommunications and Computing programmes at the Lifelong Learning Department of the Institute of Technology, Carlow (ITC) in Ireland. Second edition: April 2015 ã Diarmuid Ó Briain All rights are reserved ã of this edition, Diarmuid Ó Briain Copyright © 2015 Diarmuid Ó Briain. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". ISBN-13: 978-1512135145 ISBN-10: 1512135143 v2.0.3 Diarmuid O'Briain Free Technology Academy Open Networks 3 Preface Software has become a strategic societal resource in the last few decades. The emergence of Free Software, which has entered in major sectors of the Information ICT market, is drastically changing the economics of software development and usage. Free Software – sometimes also referred to as “Open Source” or “Libre Software” – can be used, studied, copied, modified and distributed freely. It offers the freedom to learn and to teach without engaging in dependencies on any single technology provider. These freedoms are considered a fundamental precondition for sustainable development and an inclusive information society. -
Shared QA for Producing Free Educational Materials at the FTA
Shared QA for Producing Free Educational Materials at the FTA Frans Mofers1, Wouter Tebbens2, Hanneke Potters1, and Lex Bijlsma1 1 Open Universiteit, Valkenburgerweg 177, 6419 AT Heerlen, The Netherlands 2 Free Knowledge Institute, Minahassastraat 1,203, 1094 RS Amsterdam 1 Introduction The emergence of Free Technologies such as Free Software and Open Standards has led to an increasing demand for skilled specialists, while few academic pro- grammes exists to prepare people. The Free Technology Academy (FTA) was set up to address this need. In this article we will in particular show the need for shared development and shared quality assurance. The authors sustain that lessons can be learnt from such shared efforts, which are particularly relevant for the advance of Open Educational Resources in general, their move from in- house produced and run educational objects towards peer produced materials and online learning networks. The FTA shows how this can be done in the field of Computer Science and invites interested participants to join the debate and participate in its multiple open futures. 2 The Free Technology Academy 2.1 Need for Education on Free Technology Software has become a strategic societal resource in the last few decades. The emergence of Free Technologies, such as Free Software and Open Standards, are drastically changing the economics of software development and usage, but most educational programmes in Computer Science and other related fields do not reflect this reality. In contrast to proprietary software, Free Software (FS) [1] { also referred to as `Libre Software' or `Open Source Software' [2] { can be used, copied, studied, modified and redistributed freely. -
Global Information Society Watch: Community Networks
Community Networks GLOBALGLOBAL INFORMATION INFORMATION 2018 2018 SOCIETY WATCH 2018 THE 43 COUNTRY REPORTS included in this year’s Global SOCIETYCOMMUNITY WATCH NETWORKS 2018 Information Society Watch (GISWatch) capture the different GLOBAL INFORMATION SOCIETY WATCH experiences and approaches in setting up community networks across the globe. They show that key ideas, CommunityCommunity Networks Networks such as participatory governance systems, community ownership and skills transfer, as well as the “do-it-yourself” spirit that drives community networks in many different contexts, are characteristics that lend them a shared purpose and approach. The country reports are framed by eight thematic reports that deal with critical issues such as the regulatory framework necessary to support community networks, sustainability, local content, feminist infrastructure and community networks, and the importance of being aware of “community stories” and the power structures embedded in those stories. GLOBAL INFORMATION SOCIETY WATCH GLOBAL INFORMATION SOCIETY WATCH GLOBAL INFORMATION SOCIETY WATCH 2018 Report www.GISWatch.org International Development Research Centre Centre de recherches pour le développement international AssociAtion for Progressive communicAtions (APc) A SSOCI ATION FOR PROGRESSIVE COMMUNIC ATIONS (AP C) And internAtionAl develoPment reseArch centre (idrc) Tapa_GISW_2018.indd 1 12/10/18 12:44 Global Information Society Watch 2018 International Development Research Centre Centre de recherches pour le développement international -
Toward Authentication Mechanisms for Wi-Fi Mesh Networks
Toward Authentication Mechanisms for Wi-Fi Mesh Networks Mohammad Salim Saay Thesis presented in fulfilment of the requirements for the degree of Master of Science at the University of the Western Cape Supervisor: Dr William Tucker May 2011 Declaration I, Mohammad Salim Saay, declare that this thesis \Toward Authentication Mechanisms for Wi-Fi Mesh Networks" is my own work, that it has not been submitted before for any degree or assessment at any other university, and that all the sources I have used or quoted have been indicated and acknowledged by means of complete references. Signature: . Date: . Mohammad Salim Saay. iii Contents Declaration iii List of Figures ix List of Tables xi Acknowledgments xiii Abstract xv Key words xvii Glossary xix 1. Introduction 1 1.1 Background . 1 1.2 Motivation . 8 1.3 Research questions . 9 1.4 Overall approach . 10 1.5 Thesis outline . 11 2. Related work 13 2.1 802.11 authentication mechanisms . 13 2.1.1 Closed network . 14 2.1.2 MAC address Filtering . 14 2.1.3 Password Authentication . 15 2.1.4 CHAP: Challenge-handshake authentication protocol . 16 2.1.5 Shared key authentication . 18 2.1.6 WEP: Wired equivalent privacy . 19 2.1.7 WPA: Wi-Fi protected access . 20 2.1.8 WPA2: Wi-Fi protected access II . 22 2.1.9 EAP: Extensible authentication protocol|IEEE 802.1X . 22 2.1.10 EAP-RADIUS: Remote authentication dial in user service . 24 2.1.11 EAP-TLS: EAP-transport layer security . 26 2.1.12 EAP-TTLS: EAP-tunnel transport layer security . -
Techno-Social Platform for Sustainable Models and Value Generation in Commons-Based Peer Production in the Future Internet
P2Pvalue Deliverable 1.2 P2Pvalue – Techno-social platform for sustainable models and value generation in commons-based peer production in the Future Internet Programme: FP7-ICT-2013-10 Project: 610961 Start date: 2013-10-01 Duration: 36 months Deliverable D1.2 [Theoretical synthesis: Final theoretical synthesis of WP1, including research reports on data collection] Submission date: 2014-07-31 Organisation name of lead contractor for this deliverable: Universitat Autònoma de Barcelona I P2Pvalue Deliverable 1.2 Dissemination Status PU Public x PP Restricted to other programme participants (including the Commission Services) RE Restricted to a group specified by the consortium (including the Commission Services) CO Confidential, only for members of the consortium (including the Commission Services) ii P2Pvalue Deliverable 1.2 Document information 1.1 Author(s) -(in alphabetic order and by partners) Author Organisation E-mail Primavera De Filippi CNRS [email protected] Melanie Dulong de CNRS [email protected] Rosnay Francesca Musiani CNRS [email protected] Ignasi Capdevila P2PF [email protected] Marco Berlinguer Universitat [email protected] Autonoma de Barcelona (IGOP) Mayo Fuster Morell Universitat [email protected] (Deliverable and WP Autonoma de coordinator) Barcelona (IGOP) Jorge L Salcedo Universitat [email protected] Autonoma de Barcelona (IGOP) Wouter Tebbens Universitat [email protected] Autonoma de Barcelona (IGOP) Adam Arvidsson UMIL [email protected] Alessandro UMIL [email protected] -
A European Initiative for Distance Education About Free Software and Open Standards∗
Free Technology Academy: a European initiative for distance education about Free Software and Open Standards∗ David Megías Wouter Tebbens Estudis d’Informàtica, Free Knowledge Institute Multimèdia i Telecomunicació Wibautstraat 150 Universitat Oberta de 1091 GR Amsterdam, The Catalunya Netherlands Rambla del Poblenou 156 [email protected] 08018 Barcelona, Spain [email protected] Lex Bijlsma Francesc Santanach School of Computer Science Tecnologia Educativa Open Universiteit Nederland Universitat Oberta de Valkenburgerweg 177 Catalunya 6419 AT Heerlen, The Av. Tibidabo 45-47 Netherlands 08035 Barcelona, Spain [email protected] [email protected] ABSTRACT Keywords More and more people and organisations embrace Free Soft- Virtual Campus, Free Software, Open Standards, Distance ware (FS) and Open Standards (OS). However a lack of Education, Open Educational Resources knowledge holds back their massive adoption. The Free Technology Academy will address this by setting up a virtual 1. INTRODUCTION campus offering course modules on these topics to become a showcase of a virtual campus based on FS, OS and the use Software has become a strategic societal resource in the of Open Educational Resources. This distance learning pro- last few decades. The emergence of Free Software (FS) and gramme will enable IT professionals, students, teachers and Open Standards (OS) is drastically changing the economics decision makers to upgrade knowledge and acquire relevant of software development and usage. skills on free technologies. The FTA is realised by an inter- In contrast to most proprietary software, Free Software national consortium and welcomes other interested parties [15] {also known as \Libre Software" or \Open Source Soft- to join the network.