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Overlay private IP address networks over wide area ethernet

Productivity is one of the top reasons, why Enterprises implement remote access methods to access their corporate networks. While there are several remote access methods defined today for accessing corporate networks, however there are several enhancements to consider to make next generation remote access implementation to run smoothly in existing corporate networks. In this paper, we review and identify shortcomings of existing remote access methods. We propose 2 solutions based on Mobile IP to overcome shortcomings of the existing methods and address the coexistence of our proposed techniques with existing ones. Compared with an existing VPN access method with PPP, our proposed solution offer the following advantages in terms of better usability as well as a stronger prevention of information leakage, by unifying the two authentications (one for the Layer 2 access to the carrier and the other for Layer 3 access to the enterprise network) into one at the enterprise network.