The book is a research oriented one and by virtue of reading this book,innovative ideas will be generated in context to security issues of Mobile IP.The performance metrices of Mobile IPv4 and Mobile Ipv6 are shown over WLAN for Data packets. There will be ample methods & procedures to enhance the performance metrices of Mobile IP to add new dimensions in the extended work of this Book by introducing two key factors, like (a) Deep Space Network and authenticated (b) Broadcast Services.