Wireless mesh networking on Raspberry Pi using batman-adv protocol

Question

So I\'m trying to setup a wireless mesh network using Raspberry Pi\'s, with the Edimax EW-7811Un WLAN Adapter and the batman-adv protocol.

I\'ve tried following the

Answer 1

As wifi connections to your access point work fine. We assume drivers and hardware are fine. Now let's try to connect via -- Wifi ad-hoc.

I found here some pretty promising configuration without using wpa_supplicant. As already mentioned we have to use fixed IPs. So of course they need to be different on both raspis. Please note that I had to change "manual" to "static". Now it also works at my place (after reboot). Here it comes

/etc/network/interfaces

auto lo
iface lo inet loopback
iface eth0 inet dhcp
auto wlan0
iface wlan0 inet static
    address 192.168.2.10
    netmask 255.255.255.0
    wireless-channel 4
    wireless-essid pi-ad-hoc
    wireless-mode ad-hoc

Please note: The chosen IPs should not be in the sub net of your wired network (eth0).

Also make sure sudo ifconfig wlan0 shows the correct IP

pi@raspberrypi ~ $ sudo ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 80:1f:02:87:77:81  
          inet addr:192.168.2.10  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:53 errors:0 dropped:29 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6007 (5.8 KiB)  TX bytes:1042 (1.0 KiB)

and here is the sudo iwconfig wlan0

pi@raspberrypi ~ $ sudo iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"pi-ad-hoc"  Nickname:""
          Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: 02:11:87:DF:AB:FF   
          Bit Rate:54 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=2/100  Signal level=2/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0