Uses For Demand-dial Routing

By Author: Shirley Green
Total Articles: 129
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Uses for demand-dial routing include:
Demand-dial routing provides a 70-291 Exam between branch offices and an organization's headquarters or between any two of the organization's headquarters.
Suitable connections can be arranged over the public phone system or any Internet connection.
A demand-dial network can be created by placing Network Access Servers or NASs (which are servers placed on the perimeter of a network to serve as a gate?
way to some other network) configured as FEPs (or LACs) at geographic locations around the country or around the world. Client computers can make a dial-up
connection to the most convenient NAS, and they can send data anywhere to any of the organization's locations that are reachable through the network. All communications will be tunneled and encrypted from endpoint to endpoint, and all communications will be tunneled to the requested location. Figure 7-8 represents such a network.

Tunnel Facts
Multiple dial-up clients can share the compulsory tunnel. After the first client makes a connection MCSA Certification ...
... any subsequent requests are passed over the same tunnel. The tunnel is not disconnected until the last client has disconnected. A compulsory tunnel is created by a dial-up access server that connects to a VPN server. The user's computer is not the tunnel endpoint, the server is.
Encryption
A site-to-site VPN does not provide encryption from the client to the VPN endpoint. Instead, encryption is present only between the two VPN endpoints. This is known as link encryption. If you need end-to-end encryption, to ensure data is enciypted when it leaves the client and is encrypted across the link between the VPN endpoints, use MCSE exams between the client and the VPN endpoint.