Additionally, there are new security issues that arise because of
the highly dynamic nature of the security relationships between, say,
a mobile node and its mobility anchor points, or--to an even greater
extreme--between a mobile node and its access routers in a fast handover
scenario. These new problems are not yet entirely understood and
may not be conclusively solved in the experimental and informational
protocol specifications produced by the working group. Nevertheless,
the working group will document the shortcomings in the corresponding
protocol specifications. This will provide valuable feedback to other
groups or subsequent efforts.