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NEMO basic support protocol enables mobile networks preserve communication with other nodes, while changing their point of attachment to the Internet. But in nested mobile network, Pinball routing problem appears. In this paper, a route optimization solution for mobile networks based on local mobility management framework was proposed to improve the performance. By defining the operation on local mobility anchor, forward routing path, reverse routing path and routing inside local mobility domain will be optimized. The tunnel path will be reduced, and performance will be improved. Analytical and simulation results demonstrate that our solution is a viable scheme to optimize route for nested-NEMO.