On Sun, Jul 8, 2012 at 7:09 AM, Simon Wunderlich
On Sat, Jul 07, 2012 at 12:37:24AM -0300, Guido Iribarren wrote:
Hello again nice folks,
I updated today another segment of the network with just 4 nodes, to
batman-adv 2012.2 (the one i compiled yesterday with simon patches for
blaII, marek stability fixes, and debug log enabled , yikes!)
and i couldn't get batman to work over wired ethernet?? (?)
P -(50mts wlan)- D -----(ubnt transparent bridge) 2km -- C
Node P and D connected by ethernet on eth0 but close enough that could
also see each other through adhoc wlan, with bla enabled, correctly
preferred ethernet connection to communicate between them (iperf
yielded 92mbps), so far so good.
As seen on the dump, you only use eth0 in batman? Is the Ad-Hoc connection
still active (on wlan0 or wlan-1)?
For this initial setup, i didn't add eth0 to batman, only ad-hoc
interfaces, classic setup.
works as expected.
When it doesn't work is when the ad-hoc connection is severed.
which makes the thing look like
that is, there are two gateways that can only talk to each other
through ethernet (although it's not "batctl if add"ed) don't get each
after careful re-reading of BLAII docs in the wiki, and extensive
chats with NicoEchaniz, i understood this is the planned behaviour (no
OGMs on lan)
now, node D and C, too far away from each other
to communicate over
wlan, but connected by a "loooong eth cable" (mediated by a wds
transparent bridge) wouldn't find each other batman originator.
C originator table was empty, and D only showed P.
I thought the transparent bridge was misbehaving, so I tried in a
simpler setup using P and D, with the wifi off:
but after disabling wlan0 (batctl if del wlan0-2) and adding eth0
(batctl if add eth0) on both nodes, batman could not see each other
i thought i was doing something wrong, so i tried in different ways,
but could not get it to work.
batctl td eth0 shows both outgoing OGMs from local , and incoming OGMs
but batctl l only reported outgoing OGMs.
Mhm, that's weird indeed. Is eth0 really not included in any other bridge?
It looks like the incoming packets don't reach BATMAN for some reason.
Definitely not included in any bridge.
Funny thing is, the only workaround i found for the bug is to
*include* the interface in a bridge, and add that bridge to bat0
brctl delif br-lan eth0
batctl if add eth0
# doesn't work
brctl delif br-lan eth0
brctl addbr blah
brctl addif blah eth0
batctl if add blah
# works fine, OGMs pass through perfectly
Also have you checked that the WDS bridge works via IP?
As I wasn't confident
about the WDS bridge, I simply tried with two
routers connected by a single physical ethernet cable. So the results
reported didn't include a WDS bridge at all.
You could first set
up some IP addresses and ping each other, confirm traffic with tcpdump, and
then activate batman-adv to see if the OGMs go through.