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As the requirement of Internet scale, function and performance is becoming higher, Internet taken IPv4 as its kernel technology faces more and more challenges. This paper analyzes the embodiment and problems to be solved with respect to multi-dimensional extendibility of next-generation Internet architecture; at the same time, it gives the definition and basic elements of multi-dimensional extendibility,...
With the rapid development of the Internet, new technologies and applications are emerging. One of the important applications is voice over IP. Satellites are playing an important role to provide VoIP services with their global coverage and on-board processing ability over IP networks. Satellite network environment, generally characterized by large delay and erroneous link, is considered to be unfriendly...
With the analysis of IPv6's IPSec protocol and principles, the paper designs various modules of IPSec, and achieves IPSec function. By the analysis of the FTP under IPv4 and IPv6 environment, the paper realizes the function of FTP in data transmission of IPv6. The test results of FTP data transmission based on IPSec show that the data transmission is successful and secure, the design and realization...
The Internet is migrating from IPv4 to IPv6. To determine the features for research test bed product selection, we compare the up-to-date information of IPv4 and IPv6. Currently IPv6 network penetration is still low but it is expected to grow, while IPv4 address pool is projected by Regional Internet Registry to be exhausted by the end of 2011. The reason why uptake of IPv6 is still low is because...
A number of transition mechanisms have been developed to support the interoperability between IPv4 and IPv6 during the time of migration from the existing IP version (IPv4) to the new IP version (IPv6). BDMS is one of the IPv4/IPv6 transition mechanisms that has been designed to enable IPv4-only hosts to communicate with IPv6-only hosts and vice versa; while DSTM has been designed to enable IPv6 hosts...
IPv6 provides a platform for new Internet functionality. It includes support for real-time flows, provider selection, and host mobility, end-to-end security, auto-configuration, and auto-reconfiguration. It solves the Internet scaling problem, provides a flexible transition mechanism for the current Internet, and was designed to meet the needs of new markets such as nomadic personal computing devices,...
Today network intrusion detection and intrusion prevention system (NIDS/IPS) are considered as one of the hottest topics in computer security. On the other side firewalls have optimized several times and different types have been introduced. Today by integrating NIDS and firewall a new product comes to the market, which is called IPS. IPSs protect information systems from unauthorized access, damage...
Currently, the increasing rate of routing lookups in Internet routers, the large number of prefixes and also the transition from IPV4 to IPV6, have caused Internet designers to propose new lookup algorithms and try to reduce the memory cost and the prefix search and update procedures times. Recently, some new algorithms are proposed trying to store the prefixes in a balanced tree to reduce the worst...
Over the last decade, many fundamental changes have occurred in data communications and network infrastructure that will be shaping the future of information technology for years to come. This global network infrastructure, the Internet, is now at the core of communications for worldwide economy and individuals. Internet protocol (IP) v4 is the standard for the design and interconnection of networks...
Pakistan Internet Exchange (PIE) is the largest Internet Exchange Point (IXP) in Pakistan operated and maintained by Pakistan Telecom. PIE serves almost all categories of IP users like ISPs, Educational Institutions, DNOPS, VOIP Operators, Cable Operators and Institutions with multiple services like Internet Access, DSL, MPLS-VPNs, VoIP, IPTV and VoD. PIE has 3 main nodes and 42 remote nodes with...
A small network of computing devices that started as ARPANET project in early 1980s is now a worldwide network of devices for billions of users. This global network, the Internet, has become an integral part of worldwide economy and life of individuals. Internet Protocol (IP) v4 is the basic building block of the Internet and has served well, but it has limitations that hinder its growth. The solution...
This paper designed and realized a P2P file sharing system (FSP2P) by using Java network programming. An adapter was contained in FSP2P. By using the adapter, FSP2P not only can be array to pure IPv4 or IPv6 network, but also can be array to IPv4/IPv6 coexistent network. So, it realized transparent connect between IPv4 and IPv6 in P2P file sharing system.
This paper evaluates the QoS performance of multimedia applications over wireless and wired IPv6 environment in comparison with IPv4 using the same underlying hardware. Concerning the multimedia applications, this paper discusses video streaming and Internet telephony (VoIP) because both services will be common and widely used applications by the next generation of Internet users. Our measurement...
As residential Internet access has become increasingly commoditized, the incentives to lower costs in enterprise and similar networks with service level agreements have grown as well. Simply switching to a VPN provided over Internet brings cost savings but at the same time loses any guarantees of service level. We have devised a Mobile IP-based approach to virtualize networks without neglecting Quality...
Fundamental changes have occurred in data communications and network infrastructure that will be shaping the future of information technology for years to come. The global network infrastructure, the Internet, is now at the core of communications for worldwide economy and individuals. Internet Protocol (IP) v4 is the standard for the design and interconnection of networks today; however it has limitations...
IPv6, the new version of the Internet protocol, has been developed to provide new services and to support the Internet's growth. This paper presents an overview of the key security issues, which outlines the challenges in deploying and transitioning to IPv6.
VoIP (Voice over Internet Protocol) is a technology that enables the routing of voice conversations over any IP-based network such as the public Internet. Separate and distinct client, gateway and call control functions that ability to support Peer-to-Peer, PC-to-telephone, telephone-to-PC and telephone-to-telephone scenarios. During transmission, the traffic loading and other factors in the IP (Internet...
Sharing of information and resources among different devices require networking. As networks are expanding day by day, IPv6 is gaining more and more popularity. Different transition mechanisms have been established and yet a lot of research is to be carried out. Network security is another very important area of research and needs special attention in the era of network expansions. In this paper,...
As technologies of computer network have been advanced, appliances as well as personal computers being networked together in the home have been connected to the Internet. However, the number of IP addresses in IPv4 is estimated to be not enough in the near future. IPv4 has been thus switched with IPv6. Meanwhile, Network Address Translator (for short, NAT) has been used for solving the lack of the...
Internet is a ubiquitous part of businesses and individuals worldwide. With its popularity on an incline, operating system vendors are developing end-systems that support the new version of Internet Protocol (IPv6) that eventually will replace IPv4. The new version resolves issues that IPv4 has and takes the Internet into the 21st century. Performance of the IP stack and how it associates with operating...
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