On Ubuntu 12.04 I have my Laptop connected to and part of a batman network. So my Laptop is meshing with the net. The script I used is this

How can I install a bridge, that will allow another host laptop to get internet through my Laptop?

I tried this:

service network-manager stop

batctl if add eth0
apt-get install bridge-utils

I added this in /etc/network/interfaces

auto br0
iface br0 inet static
    address 10.116.123.123
    bridge_ports eth0
    bridge_fd 5
    bridge_stp no

then ifconfig sais

br0 Link encap:Ethernet Hardware Adresse 00:a0:d1:a9:db:da 
rubo78: inet Adresse:10.116.123.123 Bcast:0.0.0.0 Maske:255.255.255.255

bat0 Link encap:Ethernet Hardware Adresse 6e:8a:8f:f2:82:e3 
inet Adresse:10.116.2.250 Bcast:10.116.255.255 Maske:255.255.0.0

ifup br0

batctl if

eth0: active
wlan0: active

but I get no network on the host