Internet Protocols are utilized to empower the communication between the computing devices in the computer networks. IPv6 offers additional address space and more noteworthy security than IPv4. The progress from IPv4 to IPv6 has been finished through three primary change systems: dual-stack, tunneling, and translation. The IPv6 progress relies upon the similarity with the enormous introduced base of IPv4 nodes and routers just as keeping up with the security of the network from possible threats and vulnerabilities of both Internet protocols. This research identifies potential security issues in the transition mechanisms and proposing prevention mechanisms to the problems identified. Dual-Stack & Tunneling mechanisms were completely implemented in this research work and the security test was based on dual-stack network. A simulation has been designed by using GNS3 and the penetration test by the THC-IPv6 toolkit. After the implementation of simulation, IPv6 in the dual-stack mechanism was identified as vulnerable to DoS via RA flooding and IPv6 fragmentation attacks that shown the IPv6 security problems. Therefore, IPv6 ACLs and RA guards were proposed in order to protect from flooding attacks and VFR should be configured to prevent IPv6 fragmentation.
Before we develop this project the international hotels daily fill form about their customers booked in and send by human labor to the nearby police station. The CCTS alleviates this challenge. Now, using our web system the hotel manager or receptionist access the customer booked in hotel registration page from the server, fills and hit submit button. The information is submitted to the police office through the network and saved to their computer at the same time. While the data is being submitted the data is checked against the criminal's list using primary key or unique number, if criminal or suspects found alert or report will be displayed to the system administrator with detail information. The prototype has been tested with data from Adama city district police office. It has been observed that the system successfully registers crime and criminals, lost property, international hotels; customer booked in hotel, generates reports and provides search facilities. In addition to these, customers are not expected to go to the four police stations or woredas if they want to register lost property. As lost property, crime and criminals registered at a station it will be shared across the network. It has also been shown that the system facilitates to view the status of cases, knowledge bases. This system promotes the manual works into digital. It reduces the time, produces accurate results and also implements security for the information.
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