Version vom 20. September 2005, 20:49 Uhr

Programm

Djursland-Info: http://www.freifunk.net/magazin/praxisberichte_projekte/djurslands Diskussion im Forum: http://forum.opennet-initiative.de/thread.php?threadid=332
Wetter: http://www.wetteronline.de/Daenemark/Arhus.htm

Livebericht

Livebericht aus Djursland:

• Freitag - sind angekommen (19 Uhr), Talkrunde mit Frilandbewohnen, Netz mit OLSR aufgebaut (0:30), Bilder in der Djursland-Gallery
• Samstag - 8 Uhr augestanden, mit Auto (mit altem Fritieroel betrieben) gefahren und im (eiskalten) See baden gewesen; 9 Uhr gemeinsames Frühstück mit ökologischen Produkten -- Philosophie-Talk mit Bjarkes; 11 Uhr Rundgang durchs Friland

Freitag

Abreise: 14 Uhr CSR Center, im Bus

Late arrival

Treffen in Friland, an der Adresse: Econ Pavillonen, Friland 12, Feldballe, 8410 Ronde (N 56.28038 E010.58765).

Samstag

• Breakfeast at Fuglsoecentret
• Visit to the Europeia Science Center
• Short presentation of DjurslandsNet and the new Djursland Networking Project
• Drive to the headquarter at the eco-sustainable village Friland
• Lunch / picnic
• Guided trip through the world of DjurslandsNet
• Presentation of new EU project for 15 new Community Networks in the Balticum
• BBQ dinner at Friland and social event

Sonntag

• Breakfeast at Fuglsoecentret
• Short presentation of Rostock OpenNet
• Discussion and ideas session for further cooperation
• Ad-hoc
• Lunch
• Departure

Reisedetails

Anreise

Fahrtdauer mit dem Auto: 6 - 7 Stunden

Unterbringung

Variante 1: Camping

Friland Feldballe, Camping, free of cost, food costs 15 - 20 (Währung erfrage ich noch)

Variante 2: Fuglsoecentret

Fuglsoecentret

Kosten: 50 - 60 pro Person (Währung erfrage ich noch).

Organizer

Lokaler Organizer ist Gregers Petersen, den manche bereits von seinem Vortrag in Rostock kennen.

Seine Handy Nummer: +45 3024 8064

Abrechnung

Ausgaben

Vorschlag zum Ausgleich (beim Zwischenmeeting?):

Mitfahrer

• Clemens Cap
• Robert Nickel
• Ralph Oesker
• Sebastian Hagen
• Mathias Mahnke
• Rene Ejury
• Friedrich Hartmann

Fahrt per gemeinsamen Mietwagen. Unterbringung im Friland. Zelten frei möglich

Vortrag

Endversion als Powerpoint Präsentation bei Clemens Cap.

Gliederung

1. introduction: Original motivation and project history
2. technology
   1. officially supported Access Points - Linksys WRT54g and Asus WL-500g
   2. IEEE80.211 compliant WIFI (ad-hoc mode), IPv4, OLSR
   3. node types
      1. stationary nodes
         1. antennas placed on the roof
         2. APs placed inside flats or offices
         3. to maintain an effective infrastructure, the association owns and administers APs at some important locations
      2. mobile nodes
         1. basically just notebooks with wifi-cards that run OLSR
         2. usable anywhere in the area serviced by ON
   4. history of infrastructure development
      1. temporary installations for test purposes
      2. point-to-point connections using highly directional antennas
      3. growth; mixed use of directional antennas and omnidirectional antennas placed inside of buildings
      4. tendency of members to attempt to establish direct wifi-links to APs linked by LAN to an internet-gateway, stagnation
      5. growth and increase of redundant routes through increase in AP density and use of less directional antennas
   5. history of transmission protocols
      1. WDS; bridging; ethernet Spanning Tree Protocol to deactivate redundant routes
      2. ad-hoc mode; IPv4 routing; OLSR
   6. address spaces
   7. gateway "titan"
      1. SNAT Opennet -> Internet
      2. OpenVPN 2.0; authentication through certificates signed by our CA
      3. DNAT (i.e. port forwarding) to openvpn Addresses; currently 10 ports per user
      4. DSL; theoretical bandwith 3000/384 (kbit/s)?
      5. logging of individual connections
         1. Ocellata - Connection Quality; measured by using ICMP ECHO Requests
            1. [1]
         2. Crinoidea (MySQLdb) - topN IP Addresses according to ON-Internet traffic caused
            1. [2]
         3. Alfredi (PIM) - Maps with colored nodes and connections
            1. [3]
            2. [4]
         4. Ketupo (olsrd, olsrd_dd_ti, dot, Pydot) - Topology Dot Graphs
            1. [5]
         5. Teucrium (netfilter, rrdtool, pyrddtool) - Traffic Graphs
            1. [6]
            2. [7]
   8. interfaces for users
      1. ethernet on their own AP
         1. possibility of using a second AP for private wireless use
      2. OpenVPN for internet-routing (endpoints on user-APs or client-systems)
   9. Acccess Point Firmware
      1. started out using Sveasoft's Alchemy on Linksys, default FW on Asus APs
      2. current versions based on OpenWRT
         1. legacy ON FW: based on Freifunk-Firmware 1.0.2, minor modifications
         2. "Opennet Firmware" based on OpenWRT whiterussian (currently rc2) (several modifications, including the FFF-webinterface)
            1. web-based installation and configuration possible
            2. OpenVPN use on the AP explicitly supported; automated certificate creation
            3. individual extensions still possible, of course
3. social issues
   1. general structure
      1. loosely organized, no pervasive hierarchical structure
      2. high importance of technologically skilled members
   2. day-to-day operation
      1. workshoops and meetings - also effective ways for interested persons to get involved
      2. documentation (e.g. HOWTOs) is collaboratively maintained on the ON wiki
      3. communication mostly per Forum, IRC and e-mail
      4. increasing interest in public relations issues
   3. motivation for individual members
      1. cheap internet access
      2. relatively fast internet access compared to the alternatives in areas without DSL coverage
      3. interest in technology / the community / ideological issues
      4. mobile internet access in the covered area
4. organisation
   1. some explicit internal rules
   2. responsibility for most of the infrastructure lies with AP-owners (i.e. individual members)
   3. individual competent members responsible for
      1. firmware design
      2. gateway administration
      3. management of jointly owned APs
      4. Public Relations
      5. support of new members
5. future relevance
   1. connecting villages without broadband-coverage?
   2. supported by people interested in technological and social issues in areas covered by broadband
   3. mobile use
6. guesstimated use of communication methods
   1. 45% - Forum (Wortlab Burning Board)
   2. 30% - Wiki (Mediawiki)
   3. 15% - Opennet IRC, increasing relevance
   4. 6% - Opennet mailing list (Mailman)
   5. 3% - Opennet Mail (apXX@..)
   6. 1% - Gallery

Wichtige Bilder

• 

  Opennet Firmware, OpenVPN-Dialog

• 

  Opennet Karte (Alfredi), Ausschnitt KTV

• 

  Opennet Karte (Alfredi), Gesamt

• 

  KTV, vllt. kann man noch ein Screenshot von Google Earth machen (Windows-Nutzer vor!)

• 

  Opennet Logo

• 

  Panel AP43

• 

  Panel AP38

• 

  Saugnapf-Omni AP24

• 

  Quad AP11

• 

  Reichweitentest

• 

  Netzwerk Grundlagen Workshop

• 

  Opennet Adressierung

• 

  Monatliche Top10-Nutzer (Transfervolumen)

• 

  Verbindungsqualität (Octella)

• 

  Ausschnitt Drahtlose Topologie (Dot-Graph)

• 

  Ausschnitt Drahtgebundene Topologie

• 

  1d Traffic

• 

  30d Traffic

• 

  356d Traffic

Weitere Bilder:

• http://www.opennet-initiative.de/gallery/Shootout2005