(sometimes we provide two download links because it may happen that the main server / link is overloaded or slow or non responding - the files are identical. Just choose one, save to the Desktop, double click to install)
ArpCacheWatch monitors Windows ARP cache and allows to send an ARP request to obtain the physical address that corresponds to the specified destination IP address. The ARP cache contains IP/MAC translations so that every time an IP packet are to be sent, the MAC address doesn't have to queried through a broadcast, instead it can use the cached address.