Babel

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Babel

Babel is one of the three routing protocols tested at the Wireless_Battle_Mesh. The upstream Babel page: http://www.pps.jussieu.fr/~jch/software/babel/

Babel versions

0.94 is the most recent released version of Babel. It has some algorithmic changes w.r.t. 0.92 and some bug reports w.r.t. 0.93, and is the version that we intend to test.

Configuration

Babel doesn't need much, if any, configuration. Simply listing the interfaces participating in the mesh is enough:

babel wlan0 eth0

Exceptions:

  • Babel uses some optimisations on wired interfaces. If you have interfaces that Babel mis-detects as wired (e.g. weird tunnelling setups, bridging), you need to specify the -w flag on Babel's command line;
  • Babel assumes bridged interfaces are wireless, i.e. disables the optimisations on bridged interfaces. The best solution is to un-bridge the interfaces.

Packaging

OpenWrt packages babel version 0.93 and should soon be availble using snapshots, if not, we will post files here. Babel's author uses ipkg-buildpackage to build his own packages.

Image:Babel-ipkg.tgz

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