During the course to deploy Ipv6, we found several critical implementation and operational issues which distract user and possibly prevent wide deployment of Ipv6. Among the problems we noticed stateless IP autoconfiguration, which provides for each nodes connected to the network an IP address. However, two nodes may have the same address, and a network conflict appears. In this case a manual IP address, which depends on restarting Network Interface Card, is required. In this paper, we present a technique that, independently of rebooting NIC, maintain the IP address fix. Validation is done by using Fedoracore Operating System.

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Wireless IP network has attracted significant interest due to their ability to support both voice and data transfer in mobile communication. One of the main issues concerning such network is the analysis and design of mobility function particularly the location management. In this paper, we focus on modelling location update function in wireless network standard GPRS (General Packet Radio Service) by using an agent approach [1]. ...