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The definitive design and deployment guide for secure virtual private networks

  • Learn about IPSec protocols and Cisco IOS IPSec packet processing
  • Understand the differences between IPSec tunnel mode and transport mode
  • Evaluate the IPSec features that improve VPN scalability and fault tolerance, such as dead peer detection and control plane keepalives
  • Overcome the challenges of working with NAT and PMTUD
  • Explore IPSec remote-access features, including extended authentication, mode-config...