questions about atheros chipsets

임영빈 ybim at mmlab.snu.ac.kr
Fri May 30 08:01:25 EDT 2008


Hi~

I'm trying to test open80211s implementation.
But I came across some problems.

I installed all two types of implementations, that is, I installed through
git://o11s.org/open80211s.git source and the compat-wireless.
When I used git://o11s.org/open80211s.git source, the problem is that the
ath5k wireless driver doesn't work at all.
I couldn't not send packets through ping between two nodes.
When I tried compat-wireless, the problem is that the mesh functionality
doesn't work.
I thought if one peer link is broken, a mesh node should find another path
if possible.
So I tested with 3 nodes. Each node can directly communicate with other
nodes.
Then I broke one link like this way.

iptables -A INPUT -m mac --mac-source 00:11:95:d4:0e:82 -j DROP

But the node that lost the link didn't find 2-hop path to the destination.
In addition, follwing manual configuration also failed.

iw dev mesh mpath new 00:0f:3d:57:1c:64 next_hop 00:18:de:61:79:3f

To sum up, I can not know whether 11s implementation works correctly in my
test.
I guess 11s implementation is done in a driver independent way, isn't it?
Or is there any problem in operation of open80211s implementation when we
use atheros chipsets?
If 11s is developed in a driver dependent way, I want to know when the
atheros chipset version is usable.

Thank you.
-- 
YoungBin Im
Master Course Student
Multimedia & Mobile Communications Lab.
School of Computer Science and Engineering
Seoul National University, Republic of Korea.
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