随着Internet网的迅速普及,上网用网的用户越来越多,因此对网络安全性的威胁也越来越大,直接连接在Internet的局域网的安全性尤其如此,采取必要的安全措施就成为了局域网连接Internet的重要工作之一。 Cisco公司为局域网接入Internet提供了全系列的路由器产品,有些已经提供了一些基本的安全防范措施。Cisco路由 With the rapid popularization of the Internet and the increasing number of users accessing the Internet, the threat to the network security is also increasing. This is particularly so for the security of the LAN directly connected to the Internet. Taking the necessary security measures becomes LAN one of the important work of the Internet connection. Cisco provides a full range of router products for local area network access to the Internet, some of which already provide some basic security precautions. Cisco routing