Free radio Dresden is an initiative of the free radio for Dresden.

The network is a not commercial, free and unencrypted WLAN network, which is composed of individual computers with WLAN and WLAN ACCESS POINTs. The name ddmesh was derived vonDD (Dresden) and Mesh (mesh), whereby Mesh is by the kind of the network-topology-developed.

The sense of the net is parallel it, to commercial nets to offer a free alternative for the Internet entrance. Each prospective customer knows itself simply such a WLAN junction, also Node mentioned, constructs and to its in genes Internet connection (additional) to make available. There is usually no large knowledge necessary.

The net divides itself into individual project, whereby in Dresden a project is assigned to each quarter. Each project can contain several Nodes. The Nodes makes the public net entrance available in its periphery. Each computer, laptop or PDA (client) can connect themselves with a Node by DHCP. If there are somewhere one or more entrances to the Internet in the network, then the clients have likewise Internet.

General function mode

All devices work in the Ad-Hoc-mode, whereby the devices on the lowest level of the network layer Models (OSI model) are connected, as if these devices to a LAN network in the same net were attached.

The net is developed thereby by means of OLSR minutes. This minutes can be installed on a computer. A simpler possibility is it, a special firmware on a WLAN routs (e.g. Linksys WRT54G, WRT54GL) to play. The free radio firmware is to be found on free radio web pages of individual cities, which were then adapted particularly for the requirements of the city.

As starting point for the firmware open WRT was used, which particularly for the Linksys WRT devices one developed. Free developers adapted these, from which the free radio firmware developed. Free radio offers a kit for an adapted firmware. The Nodes should be as far as possible highly attached (e.g. antenna on the roof), around line of sight connection to other Nodes to possess. This is because of the frequency with that the WLAN network works. If a further Node is in the proximity of the Node, then between them a connection is developed automatically.

Often also directional antennas are used in order to connect far distant Nodes. If the distances are however too large, a tunnel (Virtual private network) can be developed and be connected thus the subnetworks by the Internet connection.

OLSR minutes offer the possibility of plotting the current network topology. The connections are represented, over which the data are transported. A Node mostly sees several Nachbarnodes. The OLSR minutes decides the data on the basis different criteria, which connection at the most stable and fastest is, in order too far removed Nodes or clients to transferred (see Mobiles_Ad-hoc-Netz). If sufficient Nodes is available in the network, a meshed network develops.

Data

Dresden the net uses the following data:

• ESSID: dresden.freifunk.net
• Channel: 1
• Mode: Ad-Hoc
• IP range: 10.12.0.0 /16
• IP range: 10.200.0.0 /16

Related links

• ddmesh, free radio Dresden

Articles in category "Free radio Dresden"

We found here 4 articles.

Related Websites

We found here 5 related websites.

• Germany: Dresden Anniversary Showcases Rise Of Far Right - RADIO ...
  Radio Free Europe / Radio Liberty is an international news and broadcast ... "This is a day about the 60-year [anniversary] of the bombing of Dresden," ...


• Germany: Neo-Nazis Parade In Dresden On Anniversary Of Bombing ...
  Radio Free Europe / Radio Liberty is an international news and broadcast organization ... Dresden, Germany, was once one of Europe's most beautiful cities. ...


• Links
  Logo Radio Zending, predecessor of Radio 100 Radio 100 (free radio ... ColoRadio Dresden (community radio Dresden HSF logo · FREI (community radio Erfurt) ...


• Radio Free Internet
  A friend of mine came across a cache of Dresden Dolls covers and live material ... Threadless $10 T-Shirt Sale - click that link to help Radio Free Internet ...


• radiorevolten.net
  radio and pieces of tape as well as sound installations, texts to sound art and ... of mechlabor (monthly experimental radio ending with coloRadio Dresden), ...