[Freedombox-discuss] Freedombox Mesh Network Simulator
For a simple experiment of making 4 Guruplugs talk to each other via
batman, see here<http://projectdanube.pbworks.com/w/page/51790984/Guruplugs%20and%20BATMAN>
.
I've been told though that olsr is still the way to go for large networks.
Markus
--
Project Danube: http://projectdanube.org
Personal Data Ecosystem Consortium: http://personaldataecosystem.org/
On Wed, Jun 20, 2012 at 4:12 PM, Dave Taht <dave.taht at gmail.com> wrote:
> There are plenty of mesh protocols available - 802.11s, batman, olsr,
> and my own fav babel. 802.11s operates at layer 2, is limited to 32
> nodes, and has other issues, so I tend to ignore it. batman-adv is
> also layer too but much more flexible and interesting.
>
> But as for babel, I like it because it is a pure layer 3 protocol, it
> handles ipv6 and ipv4, and has a pluggable metric.
>
> http://babelweb.kerneis.info:8080/ shows a live babel based mesh network.
> as is http://carme.lab.bufferbloat.net:8080/
>
> (via this software.
> http://www.pps.univ-paris-diderot.fr/~kerneis/software/babelweb/
>
> setting up a babel mesh on ad-hoc is simple, this is the simplest
> possible demo... build and install babeld and ahcp on all nodes
>
> All connected nodes share the same ssid and channel. (for diversity
> routing just change the channel)
>
> On all nodes, disable Network manager and anything else that automates
> ip getting
>
> ifconfig wlan0 down
> iwconfig wlan0 mode ad-hoc channel 1 essid babel # channel and essid
> are arbitrary. Some devices won't let you do that in one pass
> ifconfig wlan0 up
>
> babeld -D -z3 eth0 wlan0
>
> ifconfig wlan0 172.20.0.1/32 # for the first node
> ifconfig wlan0 172.20.0.2/32 # for the second node
> ifconfig wlan0 172.20.0.3/32 # etc
>
> You can use the same ip addresses for your ethernet addresses
> as life is figured out via the address/interface tuple. If you do
> that, you can do transparent failover from ethernet to wireless. If
> you don't, like on any routed network, you need to make sure your
> address ranges/netmask are disjoint
>
> ifconfig eth0 172.20.0.1/32 # for the first node
> ifconfig eth0 172.20.0.2/32 # for the second node
> ifconfig eth0 172.20.0.3/32 # etc
>
> Now, it's easier to just setup an ahcp server to hand out addresses,
> and use ahcp for setup, but that's too long to go into the margins
> here.
>
>
>
>
>
>
>
> On Wed, Jun 20, 2012 at 9:28 AM, Rick C. Hodgin <foxmuldrster at yahoo.com>
> wrote:
> > Matthias-Christian,
> >
> > I appreciate your response. If the research is available let's get it
> out
> > there and find the software and steps to setup mesh networks on FBX.
> >
> >
> > Best regards,
> > Rick C. Hodgin
> >
> > On 06/20/2012 08:50 AM, Matthias-Christian Ott wrote:
> >>
> >> On 2012-06-20 14:23, Rick C. Hodgin wrote:
> >>>
> >>> The protocol will establish what information is necessary to maintain a
> >>> living, dynamic mesh, how to route packets, etc. I will also work on
> >>> protocols for fixed placement FBXs (in a home, street lamp), as well as
> >>> roaming FBXs (carrying one on a backpack, bicycle, car).
> >>
> >> I don't fully understand what you are trying to do here and haven't
> >> looked at the software you created, but if you want to simulate wireless
> >> mesh networks, I found that ns-3 [1] works (I had to use it during a
> >> course on networks which included simulation wireless mesh networks and
> >> simple evaluations of routing algorithms), so I guess you don't have to
> >> write your own software.
> >>
> >> Regards,
> >> Matthias-Christian
> >>
> >> [1] http://www.nsnam.org/
> >>
> >> _______________________________________________
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> >>
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> >>
> >
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> >
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>
>
>
> --
> Dave T?ht
> SKYPE: davetaht
> http://ronsravings.blogspot.com/
>
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