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Abstract.A prerequisite for widespread and successful deployment of on-demand ad-hoc networking technology is its ability to provide easy access to the Internet. Existing solutions for Internet access are mainly based on modifying Mobile IPv4 (MIPv4). An easier approach, yet poorly documented in published material, is to implement Network Address Translation (NAT) on Internet Gateway nodes in the ad hoc network. In this paper we describe problems experienced in our lab test-bed with NAT-based solutions under the condition of site multi-homing. Based on this experience, we propose a working solution for multi-homed ad hoc networks.

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