I upgraded the entire wireless network at a Major League Baseball Stadium with (30) 1242 APs and (1) 4402 WLC and I’m receiving a flood of ARP packets from what appears to be my Point-of-Sale vendor’s DLink 3420 bridges with a source IP of 0.0.0.0 and a destination IP of 224.0.0.1. The ARP storm is pounding my WLC so much the APs sometime never associate to the WLC. I’ve been working with Cisco’s engineers for months trying to solve the wireless issues and this is the first time I have heard this maybe a Cisco problem and not a DLink problem.