Broadcast storms - Voyage Linux, Engenius NL2611, hostap

Edwin Whitelaw Edwin.Whitelaw
Wed Jun 20 20:47:35 PDT 2007


Not sure about your first question though I suspect they are different 
since I can identify one of the multiple sources during the storm, deny 
that host access, and still observe the dest unreachable packets from 
other hosts. 

No WDS in play.  The WRAP has a 5.8GHz Atheros (CM9) radio as backhaul 
into the rest of the net.  The eth0 port goes to other systems hardwired 
locally.  Everything routed.

Again, I have no specific evidence that hostap is part of this problem 
but would be most interested if anyone else has even experienced this 
situation.  Appreciate any help you can offer or suggest.  My background 
(many years ago) is Mechanical Engineering and the whole matter just 
feels like a resonance or vibration phenomenon.



Jouni Malinen wrote:
> On Wed, Jun 20, 2007 at 11:32:41AM -0400, Edwin Whitelaw wrote:
>> On occasion, the AP will suffer broadcast storms of ICMP dest 
>> unreachable packets from all the CB3 (also Engenius 2611 radios) clients 
>> as evidenced from the iptraf display of MAC addresses.
> Are these packets different or is the same packet being sent multiple
> time? Are you just using IP routing or is bridging and WDS involved
> between the devices?

Edwin Whitelaw, P.E.
New River Valley Unwired, LLC
2200 Lonesome Dove Dr
Christiansburg, VA 24073

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