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IPSec VPN Design by Scott Wainner, Mohamed Khalid, Vijay Bollapragada

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Chapter 8. IPSec and Application Interoperability

One of the primary motivations for deploying an IPSec VPN is financial cost savings, yet deploying an IPSec VPN may affect the interoperability of other applications, such as voice and video. Therefore, there is an operational cost to deploying IPSec. Although previous chapters demonstrated many methods for simplifying IPSec VPNs, they did not address the opportunity costs that impact deployment of voice and video over the VPN.

In this chapter, you examine the challenges with deploying voice and video applications on an IPSec VPN, and explore techniques to overcome those challenges. Given that voice and video are typically real-time applications, the network’s performance must be carefully engineered ...

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