伴随着网络的迅速发展,IPv4的问题已逐渐显露,IPv6替代IPv4已是历史的必然,同时又是一个渐进的过程。目前解决IPv4 to IPv6的过渡的基本技术有隧道技术和双协议栈两种。在具体的实施过程中,要考虑网络的不同环境从而选择适当的过渡机制...伴随着网络的迅速发展,IPv4的问题已逐渐显露,IPv6替代IPv4已是历史的必然,同时又是一个渐进的过程。目前解决IPv4 to IPv6的过渡的基本技术有隧道技术和双协议栈两种。在具体的实施过程中,要考虑网络的不同环境从而选择适当的过渡机制,完成IPv4 to IPv6的转换过程。展开更多
针对IPv4向IPv6过渡的问题,详细分析了IPv4 to IPv6过渡的三种关键技术:双协议栈技术、隧道技术和网络地址转换—协议转换(NAT-PT)技术,并对各自的优缺点进行了对比;在此基础上,阐述了过渡技术的选择原则和具体应用,对当前IPv4向IPv6的...针对IPv4向IPv6过渡的问题,详细分析了IPv4 to IPv6过渡的三种关键技术:双协议栈技术、隧道技术和网络地址转换—协议转换(NAT-PT)技术,并对各自的优缺点进行了对比;在此基础上,阐述了过渡技术的选择原则和具体应用,对当前IPv4向IPv6的过渡提供借鉴作用.展开更多
在高校已经建成互通的纯IPv6网络中,通过运用IPv4 over IPv6隧道技术将高校中无法IPv6化的应用进行互联,为高校的IPv4业务拓展和资源共享提供了有效途径。随着国际互联网的不断发展,现存的IPv4网络的一些不足已经暴露出来：IPv4地址空...在高校已经建成互通的纯IPv6网络中,通过运用IPv4 over IPv6隧道技术将高校中无法IPv6化的应用进行互联,为高校的IPv4业务拓展和资源共享提供了有效途径。随着国际互联网的不断发展,现存的IPv4网络的一些不足已经暴露出来：IPv4地址空间不足,骨干路由器维护的路由表项数量过大,不易进行自动配置和重新编址,不能解决日益突出的安全问题。展开更多
The present internet version which was established and consolidated over internet protocol version 4 (IPV4) in 1981, and whose amount of public addresses available is insufficient to meet the demands explosion and cur...The present internet version which was established and consolidated over internet protocol version 4 (IPV4) in 1981, and whose amount of public addresses available is insufficient to meet the demands explosion and current internet multimedia devices, services and application intensive environment has posed serious problems of incomplete web transactions. Stakeholders and communication industry in Nigeria are unwilling and feel reluctant to migrate to IPV6 because of inhibiting factors. This needs urgent redress to overcome the tractions that are responsible for apathy to migration from IPV4 to IPV6 launched in 1994 by the Internet Engineering Task Force (IETF). If nothing is done, sometime, internet may run out of space, ARIN [1]. Users may suffer disillusionment and frustration. The objective of this study therefore is to design a model for predicting migration from IPV4 to IPV6 in Nigeria by 2027 based on growth trend developed from statistical indices. The essence is to explore and analyze the factors that can encourage migration to IPV6 in the next 10 years and use those factors to forecast growth, so that IPV6 will receive boost in terms of growth and patronage. The study also aims at designing a predictive model that simulates the behaviour of the restrictive policies on migration to 1PV6 so as to ascertain the current impact on non-motivation and unwillingness to migrate to IPV6 in Nigeria. The motivation behind this study is to identify the inhibiting factors responsible for lack of motivation to migrate from IPV4 to IPV6 in Nigeria. The methodologies that were deployed in packaging the model include the statistical methodology, Structured Systems Analysis and Design Methodology (SSADM) and prototyping. The result is indeed functional software, programmed through Visual Basic. Net. (VB.Net) that can be used to simulate the behavioural impact of any government policy formulation for Telecommunication industry and stakeholders.展开更多
IPv4地址已枯竭,满足不了信息化爆发式增长的需求,推广IPv6势在必行。但IPv6还在成长阶段,保证IPv4与IPv6的平稳过渡,需保证IPv4与IPv6并行运行。本文以广东食品药品职业学院校园网IPv4 to IPv6过渡为例,阐述了IPv6过渡期的网络、应用...IPv4地址已枯竭,满足不了信息化爆发式增长的需求,推广IPv6势在必行。但IPv6还在成长阶段,保证IPv4与IPv6的平稳过渡,需保证IPv4与IPv6并行运行。本文以广东食品药品职业学院校园网IPv4 to IPv6过渡为例,阐述了IPv6过渡期的网络、应用、信息安全等方面的设计。展开更多
“Web of Things” evolved from “Internet of Things”. Lot of research has been done in designing architecture for “Web of Things”. Two main architectures are Smart gateway based architecture and embedded Web Server...“Web of Things” evolved from “Internet of Things”. Lot of research has been done in designing architecture for “Web of Things”. Two main architectures are Smart gateway based architecture and embedded Web Server based architectture. These architectures address some of the basic and essential issues relating to Service Oriented Architecture for “Web of Things”. Taking into consideration the period of coexistence of IPv4 and IPv6 we propose an architecture using SOCKS protocol based IPv6/IPv4 gatewaying and refinements which facilitates smooth heterogeneous communications between the IPv6 and IPv4 enabled embedded nodes and can potentially be used to prevent security threats like Denial-of-Service (DoS) attacks on embedded devices attached to the web and increase its performance. Our architecture provides a way for caching responses from device and thereby increasing its efficiency and performance and yielding quick response times.展开更多
文摘在高校已经建成互通的纯IPv6网络中,通过运用IPv4 over IPv6隧道技术将高校中无法IPv6化的应用进行互联,为高校的IPv4业务拓展和资源共享提供了有效途径。随着国际互联网的不断发展,现存的IPv4网络的一些不足已经暴露出来：IPv4地址空间不足,骨干路由器维护的路由表项数量过大,不易进行自动配置和重新编址,不能解决日益突出的安全问题。
文摘The present internet version which was established and consolidated over internet protocol version 4 (IPV4) in 1981, and whose amount of public addresses available is insufficient to meet the demands explosion and current internet multimedia devices, services and application intensive environment has posed serious problems of incomplete web transactions. Stakeholders and communication industry in Nigeria are unwilling and feel reluctant to migrate to IPV6 because of inhibiting factors. This needs urgent redress to overcome the tractions that are responsible for apathy to migration from IPV4 to IPV6 launched in 1994 by the Internet Engineering Task Force (IETF). If nothing is done, sometime, internet may run out of space, ARIN [1]. Users may suffer disillusionment and frustration. The objective of this study therefore is to design a model for predicting migration from IPV4 to IPV6 in Nigeria by 2027 based on growth trend developed from statistical indices. The essence is to explore and analyze the factors that can encourage migration to IPV6 in the next 10 years and use those factors to forecast growth, so that IPV6 will receive boost in terms of growth and patronage. The study also aims at designing a predictive model that simulates the behaviour of the restrictive policies on migration to 1PV6 so as to ascertain the current impact on non-motivation and unwillingness to migrate to IPV6 in Nigeria. The motivation behind this study is to identify the inhibiting factors responsible for lack of motivation to migrate from IPV4 to IPV6 in Nigeria. The methodologies that were deployed in packaging the model include the statistical methodology, Structured Systems Analysis and Design Methodology (SSADM) and prototyping. The result is indeed functional software, programmed through Visual Basic. Net. (VB.Net) that can be used to simulate the behavioural impact of any government policy formulation for Telecommunication industry and stakeholders.
文摘“Web of Things” evolved from “Internet of Things”. Lot of research has been done in designing architecture for “Web of Things”. Two main architectures are Smart gateway based architecture and embedded Web Server based architectture. These architectures address some of the basic and essential issues relating to Service Oriented Architecture for “Web of Things”. Taking into consideration the period of coexistence of IPv4 and IPv6 we propose an architecture using SOCKS protocol based IPv6/IPv4 gatewaying and refinements which facilitates smooth heterogeneous communications between the IPv6 and IPv4 enabled embedded nodes and can potentially be used to prevent security threats like Denial-of-Service (DoS) attacks on embedded devices attached to the web and increase its performance. Our architecture provides a way for caching responses from device and thereby increasing its efficiency and performance and yielding quick response times.
