Tunabananas: /* Why be on a local network? */

2013-05-16T09:52:58Z

Why be on a local network?

← Older revision		Revision as of 02:52, 16 May 2013
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	*Overcoming alienation, loss of community		*Overcoming alienation, loss of community
	*Supporting local organizations and businesses		*Supporting local organizations and businesses
			*Emergency communications (natural disaster, censorship, etc)

	=Things we need=		=Things we need=

Tunabananas: Created page with " =Attendees= alex, substack, juul, yardena, jenny, miguel =Fundamental Questions= ==Why be on a local network?== Overcoming alienation, loss of community *Supporting local..."

2013-05-16T09:52:27Z

Created page with " =Attendees= *alex, substack, juul, yardena, jenny, miguel =Fundamental Questions= ==Why be on a local network?== *Overcoming alienation, loss of community *Supporting local..."

New page

=Attendees=
*alex, substack, juul, yardena, jenny, miguel

=Fundamental Questions=
==Why be on a local network?==
*Overcoming alienation, loss of community
*Supporting local organizations and businesses

=Things we need=
*Ladder
*Binoculars
*Let's make a wishlist!

=Ideas=
*Omnidirectional on the hilltops with directional antennae, buy 1 donate one to 510pen
*Mapping collective houses and apartment buildings with rooftop accesss
*College dorms who'd want a secure network for file-sharing

=Notes=
"TCP/IP was designed to work over any kind of layout and not just the booming voice of the master, which is what we currently have" -yardena
*meshing protocol handles the routing
*master mode only useful if you want to appear as a wireless access point
*ARP (address resolution protocol) cache which identifies the network cards on machines
**^data link layer
*delivery is much less efficient due to needing to broadcast
*delivery speed is highest to its adjacent neighbors
*message queues through key value stores
*bootstrapping list

=Low Bandwidth Emergency Communications Project=
*talk to juul, legind or jerkey (often on irc)
*Played with it Sunday and Monday â€“ what kind of transmitter do we build? The cheap USB sticks don't go above 64 mHz
*Trying to find a cheap transmitter that can do more than 9600 baud
*APRS weather stations and some ham operators are already operating at that level
**NarrowBandFM â€“ use with 50 watt transmitters (5600?)
**GPS transmits position, with repeaters operated by amateurs until it reaches an internet gateway in Finland which has a map
**not very disaster proof, only 1200 baud
*>1mbps OFDM (orthogonal frequency division multiplexing, similar to CDMA) modulation, which is also used for wifi â€“ spread spectrum technique that uses frequencies which are orthogonal, so you won't get any noise from the adjacent channels (less interference)
*<$150 transmitter
*can be tuned into legal frequencies later
*"ssh is the first thing i'd want in an emergency'
*â†’ but most nodes are just going to be receivers
*49 mHz, kind of abandoned territory â€“ 49 is analog -
*transmit-capable SDR on new 4G devices
*build the transmitter, and use the audio port â€“ seeking to design that

=relaychum: friend-to-friend darknet=
*https://github.com/substack/relaychum
*every message goes to every node, but the senders are completely anonymous (as are the recipients), *still needs crypto and signing, then a mailbox system
*indexdb: permanent storage in a browser
*compensates even on a crappy network
*once back online, can propagate out to the network
*written in node.js
*partition-tolerant darknet
*public keys from chums
*chum rings! and also bigger rings
*every node is relaying traffic, so the identity of the originator can't be traced
*liquid chat room
*inspired by homestuck comic - 'pesterchum'
*creating a trust network
*by writing it in node it can also run in browsers
*pushing out public keys to the network
**don't want that information contained in the key itself
**could hash the keys

=Funding=
*What are our costs?
*Routers, minimum specs:
**4MB+ & OpenWRT compatible
**check seattle meshnet wiki for hardware specs
*Router donation drive
*Which protocol?
**batman-adv vs babel vs. cjdns
**open-mesh.org â€“ has the documentation for batman
**Babel seems easier
**Still need to play with cjdns
*Captive portal
*Serving less than 1kb locally

=Rad Routers=
*WRT54G â€“ rev 2 (NOT rev 3 or 4)
*Asus RT n10+ series routers are highly reliable
*WR703N router â€“ half watt routers

=Divergence into political philosophy=
*"the whole stupid is greater than the sum of its stupids"
*amplification of the spectacle
*the best response is finding alternatives to fear â€“ eg joyful emotion and communitas
*the generative internet rather than walled, open architecture & decentralized human and machine apis
*digital citizenship movement
*redefining the commons
*revived calia proposal
*destabilizing foreign governments does go hand in hand with CISPA-type proposals
*Border routers in Australia

=Action Items=
*Meshathon! (future event)
**Get 3 routers and get them talking to each other.
**Setting up a tiny mesh can take less than 4 hours
*David Gothberg talk, "Peer-to-peer Under the Hood": http://www.youtube.com/watch?v=MNzMNjW8oGs
*Awesome Foundation proposal to fund initial hardware
*Everyone should buy a router (or several) for themselves to play with

=Next Meeting=
*Thursday, 5/16, 6pm @ sudo room
*Playing with new routers, installing OpenWRT and possibly batman-adv, babel

Mesh/09 May 2013 - Revision history

Tunabananas: /* Why be on a local network? */

Tunabananas: Created page with " =Attendees= *alex, substack, juul, yardena, jenny, miguel =Fundamental Questions= ==Why be on a local network?== *Overcoming alienation, loss of community *Supporting local..."

Tunabananas: Created page with " =Attendees= alex, substack, juul, yardena, jenny, miguel =Fundamental Questions= ==Why be on a local network?== Overcoming alienation, loss of community *Supporting local..."