WLC 4400 Cannot send an ARP reply

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Jun 5th, 2007
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Has anybody seen this error message. "dtlArpRequest: Cannot send an ARP reply to 00:0B:85:86:4D:20" It happens when I change the WLC to lag. It works fine without lag turned on. There is about 17 aps on it. As soon as I turn it on and reboot the WLC about 10 of the aps come up. Over time the aps get fewer and fewer until there is 0 aps. Any ideas?? I have checked the switch config per cisco specs and I still have same problem. I have upgraded to 4.0.206 to 4.1.

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ankbhasi Tue, 06/05/2007 - 07:33
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  • Cisco Employee,

Hi Friend,

I believe you might have reloaded the controller once after you enabled LAG? Also what is the channel-group mode set to on switch side?

Also can you paste the output of "sh interface sum" from controller?



Kevin Conklin Tue, 06/05/2007 - 07:40
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I reloaded it multiple times. Channel-group mode is on. I actually can not because lag is turned off now. I can only do it when I take it down. Thanks for the response.


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