Download Building a virtual private network by Meeta Gupta PDF

By Meeta Gupta

Your enterprise needs to be attached that allows you to compete within the international market. staff want to know that their company's community is available at any time, from anyplace. A digital deepest community (VPN) accomplishes this through the use of distant connectivity applied sciences that mix latest inner networks with the web to safely speak info. construction a digital deepest community is your key to designing, enforcing, and securing a completely attached community that meets what you are promoting wishes.

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In case of non-IP protocols and technologies, such as Frame Relay and ATM, Virtual Private Trunking (VPT) technology is used. VPT technology is depicted in Figure 2-2. VPT is compatible with a wide range of protocols and is based on packet switching technologies. Therefore, it makes use of Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs) for data transmissions. For successful transactions, VPT requires a WAN device, such as a VPN REQUIREMENTS FIGURE 2-1 A generic representation of VIPR.

Use of Virtual IP Routing (VIPR). As shown in Figure 2-1, VIPR works by logically partitioning a physical router located at the service provider end (as a part of the ISP’s infrastructure). Each partition is configured and managed as a physical router and can support an individual VPN. In simpler terms, each logical partition is treated as a complete router with full router functionality. As a result, these logical router partitions can support multiple protocols and are capable of handling private IP addresses.

They should not only be easy to implement and manage, but also should withstand any access violations from internal users as well. In addition, the user login process should be fast and easy so that users do not face difficulties while accessing the VPN. Availability and Reliability Availability refers to the total uptime of the network setup. In private networks and intranets, uptime is relatively high because the entire infrastructure is proprietary and in complete control of the organization.

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