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I'm creating a mesh network with B.A.T.M.A.N..

The version is 2011.4.0 in host A, 2012.3.0 in host B. I've setup the network as explained here.

I can ping bat0 interfaces if the connection is done with ethernet cable:

# Host A
ifconfig eth2 mtu 1528
batctl if add eth2
ifconfig bat0

# Host B
ifconfig eth0 mtu 1528
batctl if add eth0
ifconfig bat0
ping ## Ping ok

If i switch to wireless adhoc, without security, this doesn't work.

# Host A
ifconfig eth1 mtu 1528
batctl if add eth1
ifconfig bat0

# Host B
ifconfig wlan0 mtu 1528
batctl if add wlan0
ifconfig bat0
ping ## No ping!!!

I'm sure the wireless connection is working because I can ping hosts if I assign ip to wireless interfaces:

# Host A
ifconfig eth1

# Host B
ifconfig wlan0
ping # Ping ok

I've tried to setup wireless with iwconfig and with wpa_supplicant but the result doesn't change.

Any idea?


After some investigations in logs, I've found these interesting lines (host B) repeating:

[   7267780] Received BATMAN packet via NB: 90:4c:e5:__:__:__, IF: wlan0 [00:0b:81:__:__:__] (from OG: 90:4c:e5:__:__:__, via prev OG: 90:4c:e5:__:__:__, seqno 2, ttvn 1, crc 53338, changes 1, td 255, TTL 50, V 14, IDF 0)
[   7267780] updating last_seqno: old 1, new 2
[   7267780] bidirectional: orig = 90:4c:e5:__:__:__ neigh = 90:4c:e5:__:__:__ => own_bcast =  0, real recv =  2, local tq:   0, asym_penalty:  24, total tq:   0
[   7267780] Forwarding packet: tq: 0, ttl: 49
[   7267780] Forwarding packet: rebroadcast neighbor packet with direct link flag

So... host B is receiving something from host A! But ping isn't working and batctl o says "No batman nodes in range ..."

share|improve this question
What wireless card are you using? – schaiba Aug 1 '13 at 16:00
host A: Broadcom Corporation BCM43225 802.11b/g/n, host B: Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter – Alessandro Pezzato Aug 1 '13 at 16:04
Just a guess: it might be that the wi-fi card driver doesn't support some feature needed for BATMAN to work. – schaiba Aug 1 '13 at 16:06
ok, where can I find the list of features BATMAN needs? – Alessandro Pezzato Aug 1 '13 at 16:09
Here: lists.open-mesh.org/pipermail/b.a.t.m.a.n/2011-November/… ; this is suggesting you're not the only one with this issue. Reading the whole thread will help you. – schaiba Aug 1 '13 at 16:16

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