Establishing a Mesh Portal

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Revision as of 02:42, 31 March 2007 by DanWilliams (talk | contribs)
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Establishing a Mesh Portal

It's not entirely automatic quite yet; we'll get a more automatic solution in place soon.

You need:


  • Un-gzip and un-tar that somewhere on your mesh portal machine
  • in masquerade.sh from the mpp-utils, change EXTIF to your USB wired interface
  • In masquerade.sh, make the following changes (in patch-style form):
   # This line results in iptables: Unknown error 4294967295

- #$IPTABLES -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT + $IPTABLES -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT

   $IPTABLES -A FORWARD -i $EXTIF -o $INTIF  -j ACCEPT
   $IPTABLES -A FORWARD -i $INTIF -o $EXTIF -j ACCEPT

- $IPTABLES -A FORWARD -j LOG + #$IPTABLES -A FORWARD -j LOG


  • Stop NetworkManager and the 'network' scripts

chkconfig --level 2345 NetworkManager stop chkconfig --level 2345 network stop chkconfig --level 2345 dhcdbd stop

  • reboot
  • Create an ifcfg file for your wired interface. If your wired interface is eth1:

Create /etc/sysconfig/network-scripts/ifcfg-eth1, which should contain:

DEVICE=eth1 ONBOOT=no BOOTPROTO=dhcp

  • Start the wired interface

ifup eth1

  • Configure the mesh interface

iwconfig msh0 mode ad-hoc channel 11 essid "olpc-mesh"

  • Assign the address to the mesh interface

ifconfig msh0 169.254.1.1 up

  • Delete the 169.254/16 route on the wired interface

ip route del 169.254.0.0/16 dev eth1

  • run the mpp.py script

python mpp.py

and it should all work