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Funkfeuer + community
wifi networks in Europe
        L. Aaron Kaplan (aaron@lo-res.org)
Presentation held at the Berkman Center, Cambridge
                     March 2009
Open Source
Open Hardware
Open Networks
It [radio] is purely an apparatus for distribution,
for mere sharing out. So here is a positive
suggestion: change this apparatus over from
distribution to communication. The radio would
be the finest possible communication apparatus in
public life, a vast network of pipes.
     Bertolt Brecht
     «The Radio as an Apparatus of
     Communication»
     (in Blätter des Hessischen Landestheaters, Darmstadt, No. 16, July 1932)
Current Internet

• scale free
• a lot of concentration on key nodes
• getting more and more centralized
Contrast
Contrast
• less scale free, more meshed or completely
  meshed
• decentralized, anarchic
• more resistant to failures?
• mobile
• innovation at the edge
Motivation

• Censorship resistant networks (“3 strikes out”)
• (anti-surveillance), anti data retention
• Independence, running own network
• financially stable, self-sustaining
How it started in
          Vienna
•   q/spot history
•   Book - asked if we can use 10 existing locations
    for free
•   Tested AODV, mobilemesh, OLSR. OLSR sort of
    worked. Same results in Berlin Freifunk
•   Public presentation, invitation to the public
Where are we now?
•   aaron@viviroof:~$ ip route show table all | wc -l
    674
•   240 roofs
•   repeated in Graz, Bad Ischl, Weinviertel
•   halfway distance to Bratislava
•   longest links 30km
•   vibrant very active community
•   fibre co-sharing / digging
In parallel...
• Guifi.net Barcelona
• Djursland - forgotten by the telco industry
• Berlin Freifunk
• Athens wireless
• Paris Sans Fils
• czfree network
Principles of Funkfeuer

• Free, everybody is allowed to join
• Pico peering agreement. Free transit
• Bandwidth provided by association
• Experimental network
• Value is (in) the network
Financial Sustainability
Colo center
Other networks in
        Europe
• Guifi.net: ~ 5000 nodes
• athens wireless network: ~ 2400 nodes
  OLSR+ BGP
• czfree.cz: ~ 10.000 users
• freifunk.net: ~ 800 nodes many cities in .de
• ...
Athens wireless
   network
czfree


• Covering almost the whole country
• interconnection of small WISPs
Guifi.net
Freifunk

• Sharing of DSL lines
• completely decentralized
• Freifunk firmware
• many cities in Germany
Muni Wifi in Torino
We took back
 Boston ;-)
Thanks!

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L. Aaron Kaplan

  • 1. Funkfeuer + community wifi networks in Europe L. Aaron Kaplan (aaron@lo-res.org) Presentation held at the Berkman Center, Cambridge March 2009
  • 5. It [radio] is purely an apparatus for distribution, for mere sharing out. So here is a positive suggestion: change this apparatus over from distribution to communication. The radio would be the finest possible communication apparatus in public life, a vast network of pipes. Bertolt Brecht «The Radio as an Apparatus of Communication» (in Blätter des Hessischen Landestheaters, Darmstadt, No. 16, July 1932)
  • 6. Current Internet • scale free • a lot of concentration on key nodes • getting more and more centralized
  • 8.
  • 9. Contrast • less scale free, more meshed or completely meshed • decentralized, anarchic • more resistant to failures? • mobile • innovation at the edge
  • 10. Motivation • Censorship resistant networks (“3 strikes out”) • (anti-surveillance), anti data retention • Independence, running own network • financially stable, self-sustaining
  • 11. How it started in Vienna • q/spot history • Book - asked if we can use 10 existing locations for free • Tested AODV, mobilemesh, OLSR. OLSR sort of worked. Same results in Berlin Freifunk • Public presentation, invitation to the public
  • 12. Where are we now? • aaron@viviroof:~$ ip route show table all | wc -l 674 • 240 roofs • repeated in Graz, Bad Ischl, Weinviertel • halfway distance to Bratislava • longest links 30km • vibrant very active community • fibre co-sharing / digging
  • 13. In parallel... • Guifi.net Barcelona • Djursland - forgotten by the telco industry • Berlin Freifunk • Athens wireless • Paris Sans Fils • czfree network
  • 14. Principles of Funkfeuer • Free, everybody is allowed to join • Pico peering agreement. Free transit • Bandwidth provided by association • Experimental network • Value is (in) the network
  • 17. Other networks in Europe • Guifi.net: ~ 5000 nodes • athens wireless network: ~ 2400 nodes OLSR+ BGP • czfree.cz: ~ 10.000 users • freifunk.net: ~ 800 nodes many cities in .de • ...
  • 18. Athens wireless network
  • 19. czfree • Covering almost the whole country • interconnection of small WISPs
  • 20.
  • 22.
  • 23. Freifunk • Sharing of DSL lines • completely decentralized • Freifunk firmware • many cities in Germany
  • 24.
  • 25. Muni Wifi in Torino
  • 26.
  • 27.
  • 28.
  • 29. We took back Boston ;-)
  • 30.