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I have NME-AIR-WLC12-K9 software version 5.2.178 and LAP1131AG software version 12.4(18a) access points in my wireless network .
I see that APs sent once a minute gratious ARP packets, so in my IPS trigered signature "ARP reply to broadcast".
How can I turn off this feature? I did not find anything in configuratioln guide.
You cannot disable this.
But I don't think it's a faulty behavior. Why is your IPS complaining about gratuitous ARP ? Lots of device do that.
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