This article describes the behavior of the Address Resolution Protocol (ARP) and Gratuitous ARP (GARP) on NetScaler devices. We have contacted our service partner and they said we should allow gratuitous arp in the first place globally with the command. Conditions: … Configuring Cisco AutoSecure Interactive Mode This happens to be the recommended mode for securing your Cisco router. Disabling gratuitous arp [edit system arp ] aging-timer minutes ; I used PacketTracer5 to simulate some configurations and observed that 3560 layer3 switch performed Proxy ARP function. With proxy ARP enabled, the switch captures and routes traffic to the intended destination. Google has many special features to help you find exactly what you're looking for. Gratuitous Cisco 2960 Switches disable ports when Sophos The arp timeout command applies only to the interface that is entered. ARP To disable the ARP control, use the no form of this command. 第二种方法就是免费ARP技术（gratuitous ARP），目前应用也很广泛。. interface ATM0/0/0.