随着笔记本电脑、家庭电脑、PDA等端点设备广泛应用,对于因为这些设备管理不足或管理不当而给企业带来的潜在安全隐患,网络管理员们有着长期而深刻的认识。现在,越来越多的承包商、咨询师、客户及远程工作人员得以接触企业网络资源。在这一背景下,对单一架构下的多种终端设备及用户进行网络访问与安全控制的必要性日益凸显。 With the widespread adoption of end-point devices such as laptops, home computers, and PDAs, network administrators have long-term and deep-seated understanding of potential security risks to enterprises due to inadequate or mismanaged devices. More and more contractors, consultants, customers and remote workers now have access to corporate network resources. Under this background, the necessity of network access and security control for a variety of terminal devices and users in a single architecture has become increasingly prominent.