As the cellular world and the Internet converge, mobile networks are transitioning from circuit to packet and the Internet Protocol (IP) is now recognized as the fundamental building block for all next-generation communication networks. The all-IP vision provides the flexibility to deliver cost-effective services and applications that meet the evolving needs of mobile users. RF engineers, mobile network designers, and system architects will be expected to have an understanding of IP fundam...

The definitive design and deployment guide for secure virtual private networksLearn about IPSec protocols and Cisco IOS IPSec packet processingUnderstand the differences between IPSec tunnel mode and transport modeEvaluate the IPSec features that improve VPN scalability and fault tolerance, such as dead peer detection and control plane keepalivesOvercome the challenges of working with NAT and PMTUDExplore IPSec remote-access features, i...