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The attempts of malicious access and attacks from the Internet to the internal computers of organizations never stop today and corresponding countermeasure for each technique is required. Most organizations introduce some firewall facilities as one of the solutions to protect their internal computers as well networks from those attacks. However, in most organizations, the network administrator has...
In recent years, with proliferation of smart phones and tablet PCs, speedup of wireless LAN communication is required for dealing with increase of traffic in wireless networks. However, transmission speed through a wireless network often slows down in comparison with that through a wired network since packets of wireless networks frequently drop due to the influence of surrounding environment such...
With the wide spread of the Internet and the increasing of the Internet users, the fact of concentrated accesses to a specific server becomes a critical problem and it is important to process those accesses effectively. Multihomed network is attracted much attention to provide stable and efficient Internet services. In this paper, we focus on the multihoming method in the IPv6 environment. In the...
To operate e-mail systems stably multihomed networks are well used. As an operation method on multihomed networks, we have proposed a dynamic route selection method considering status of networks. However, status of Mail Transfer Agents(MTAs) have not been considered in this method so that a heavily loaded MTA would be possibly selected. In this paper, we propose a new dynamic route selection method...
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