Chapter 10. Configuring the Cisco 3000 Concentrator for IPSec over TCP and UDP

After completing this chapter, you will be able to perform the following tasks:

  • Understand how IPSec interacts with NAT

  • Configure IPSec over UDP

  • Configure NAT-Traversal

  • Configure IPSec over TCP

  • Monitor session statistics

Previous chapters looked at configuring remote-access VPNs using the VPN Software Client and the Hardware Client. The one major headache when configuring any type of VPN is Network Address Translation (NAT) and Port Address Translation (PAT). This configuration headache exists for both site-to-site VPNs and remote-access VPNs and is common for every product in the Cisco VPN family. Luckily, the Cisco VPN Concentrator range of products provides tools to ease ...

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