IPSec is a network layer VPN technology, that it is independent of the application. IPSec packet is encapsulated in their own original IP information, so you can hide all application protocol information. Once the IPSec to establish encrypted tunnels, you can connect one to many various types, such as Web, e-mail, file transfer, VoIP and other connections, and each transfer must correspond to the VPN gateway after the relevant server. IPSec is application-independent technology, IPSec VPN client supports all IP layer protocol; IPSec technology, the client to the site, site to site, client to client connection technology used is exactly the same; IPSec VPN general integration of the network gateway firewall functionality; IPSec client with personal firewall and other security features along with sales, therefore, can be configured to ensure prevention of the virus, and intrusion detection can be carried out.
Wittes proposal did not make Gartner analyst Michael Silver fertile surprise. Xi Erwo Stephen Klein and his colleagues published a report on Wednesday suggested Ince enterprises to give up deployment of Vista, directly deploy Windows 7. Xi Erwo said that if the enterprises have started buying in the new deployment of new PC, Vista, should continue to implement the original plan; If you have not begun to deploy, it should be turned to Windows 7. He said that according to Gartners experience, if we give up the deployment of Vista Windows 7 plans shift of no more than 6 months, Windows 7 is the right choice. Since a large number of companies PC is still running Windows XP, more than half of companies plan to skip Vista, Windows 7 will be the inevitable choice for the companys future. For the deployment of Windows 7, the sooner the better, because Microsoft will no longer support the April 2014 Windows XP, which means that enterprises should start before the end of 2012 to deploy Windows 7.