L2TP as a "compulsory" tunneling model is to allow dial-up users and another point in the network an important mechanism to establish a connection. Established as follows: ] the user to establish a connection through the Modem and NAS; ] the L2TP NAS users to access server authentication; ] NAS in the policy configuration file or in consultation with the policy on the basis of the server, NAS, and L2TP Access Server to dynamically create an L2TP tunnel; ] between the user and the L2TP access server to establish a point to point protocol to access the service tunnel; ] user access to VPN services through the tunnel.
Microsoft is trying to convince the market, the companys cloud computing operating system, not just words. Microsoft last October in the Professional Developers Conference announced Windows Azure. , Microsoft has also said that Azure would end all elements are ready, but since then, Microsoft has not mentioned the progress of the Azure. Microsofts PDC last October, and had a slide show to explain the strategy of Windows Azure. Telephone interview with reporters last week, Microsoft senior director, said Steven Martin, Microsoft continues to increase every day people to use the Azure, but he would not say how many people use the service again.