This paper gives an overview of the issues related to the QoS mechanisms under IPv6 and the transition of applications to the new Internet protocol. We describe the implementation and testing of a QoS service on IPv6 networks, which is based on the DiffServ architecture (expedited forwarding) and provides strict priorities to packets that are produced from real time applications. The service wa...

New technologies, viewing paradigms and content distribution approaches are about to take the TV/video services industry by storm. Five emerging trends are observable, among which is the worldwide deployment of IP Version 6 (IPv6), that are all related to the next-generation delivery of entertainment-quality video and can be capitalized upon by progressive service providers, telcos, cable opera...

One of the main purposes of Internet Protocol version 6 (IPv6) developments was to solve the IP address depletion concern due to the burgeoning growth of the Internet users. The new Internet protocol provides end-to-end communication, enhanced security and extensibility apart from the other features such as address auto-configuration or plug-and-play and faster packet processing in the routers....

In IPv6, optional internet-layer information is encoded in separate headers that may be placed between the IPv6 header and the transportlayer header. There are a small number of such extension headers currently defined. This document describes the issues that can arise when defining new extension headers and discusses the alternate extension mechanisms in IPv6. It also provides a common format ...

This document lists security threats related to IPv6 multihoming. Multihoming can introduce new opportunities to redirect packets to different, unintended IP addresses. The intent is to look at how IPv6 multihoming solutions might make the Internet less secure; we examine threats that are inherent to all IPv6 multihoming solutions rather than study any specific proposed solution. The threats in...

Nowadays IPv6 over IPv4 tunnels are widely used to form the global IPv6 Internet. This paper analyzes a packet fragmentation problem in IPv6 over IPv4 tunnels due to the MTU difference between IPv6 and IPv4 layers, which would greatly degrade the performance of the tunnels if ever happened. It also demonstrates an ICMP based attack that could induce the problem and gives some advice on how to d...

Due to the scale and complexity of current Internet, how to protect the existing investment and reduce the negative influence to users and service providers during the transition from IPv4 to IPv6 is a very important research topic for the future Internet. This paper summarizes and compares translation methods, tunneling methods, IPv6 transition scenarios, and IPv6 transition security problems;...

This document specifies a method for connecting IPv6 hosts and routers (nodes) within predominantly IPv4-based sites. This method is based on an IPv6-IPv4 compatibility aggregatable global unicast address format (described herein) that embeds the IPv4 address of a node within the EUI-64 format interface identifier of an IPv6 address. This document assumes that, during the IPv4 to IPv6 coexisten...

The next-generation Internet Protocol, initially known as IP Next Generation (Ipng), and then later as IPv6, has been developed by the Internet Engineering Task Force (IETF) to replace the current Internet Protocol (also known as IPv4). To enable the integration of IPv6 into current networks, several transition mechanisms have been proposed by the IETF IPng Transition Working Group. This work e...

On the Internet, two different IP protocols are deployed such as IPv4 [7] and IPv6 [1]. The Mobile Router uses the basic NEMO protocol [2] which is IPv6 protocol specific. During the early period of time that IPv6 transition is occurring it is very likely that a Mobile Router will move to an IPv4 only access network. When this occurs the Mobile Router will no longer be able to operate using the...