while(reply = getreply())
        next unless reply.is_arp?
        company = OUI_LIST::lookup_oui_company_name(reply.arp_saddr_mac)
        print_good("#{reply.arp_saddr_ip} appears to be up (#{company}).")
        report_host(:host => reply.arp_saddr_ip, :mac=>reply.arp_saddr_mac)