ARP Reply-to-Broadcast

Unanswered Question
Oct 13th, 2007
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I have a 2106 running code with 6 1131 access points. 4 of those access points are located in our main office and are in our wireless VLAN. I have an IPS sensor monitoring that VLAN and I am seeing this message:

192.168.x.x/0 --> 192.168.x.x/0 N/A ARP Reply-to-Broadcast,NR-7102/0,Time:1192307707,Risk Rating:30,VLAN:x

The address is the one of the access point. Does anyone know why the access point would generate a ARP reply to broadcast with his IP address as the source and destination?

Thank you,


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ivillegas Thu, 10/18/2007 - 14:24
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As far as I know access point doesnt broadcast itself for any of the service. This probabaly indicates a security threat . Check for this.

p-allen Sun, 11/25/2007 - 09:17
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we are seeing the same thing with the arp reply to broadcast in MARS and some of our cisco AP's. Does anybody have any ideas?


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