Get Building a virtual private network PDF

By Meeta Gupta

ISBN-10: 1931841810

ISBN-13: 9781931841818

Your online business has to be attached with a view to compete within the worldwide market. staff want to know that their company's community is on the market at any time, from anywhere. A digital inner most community (VPN) accomplishes this by using distant connectivity applied sciences that mix current inner networks with the net to soundly converse info. construction a digital deepest community is your key to designing, enforcing, and securing an absolutely hooked up community that meets your online business wishes.

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Remote Access VPNs eliminate the need for a modem pool. b. Intranet VPNs are dependent on a WAN router backbone, which is why they are expensive solutions. c. Extranets are expensive and complex solutions that require efficient management. d. QoS cannot be guaranteed in the case of Intranet VPNs. 19 20 Part I VPN BASICS Answers Multiple Choice Answers 1. a. 25 is not a VPN protocol. Instead, it is a network technology. 2. c. L2TP is a combination of PPTP and L2F. L2TP is not the predecessor of L2F.

If security measures are not stringent at the service provider end, the subscriber organization’s intranet may be extremely vulnerable to all sorts of security threats, such as spoofing or Denial-of-Service. Because of this, the service provider’s infrastructure should not only be high-availability and high-performance, but also extremely secure. NOTE Refer to Chapter 10, “VPN Security Issues,” for detailed information on the various VPN security threats. The reliability of the service provider’s infrastructure is dependent on two elements—the network access switching backbone and the Internet backbone of the ISP.

That perception is not correct because there are various types of public networks that exist today. The major categories of public networks include the following: ◆ POTS (Plain Old Telephone Service). POTS refers to the standard telephone services you use at home and work. The main difference between POTS and nonPOTS services is based on the speed of communication. POTS supports speeds up to 56Kbps. Note that high-speed telephone services, such as Frame Relay, ATM, FDDI, and so on, do not belong to the POTS category.

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Building a virtual private network by Meeta Gupta

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