Our understanding of IPv6 deployment is surprisingly limited. In fact, it is not even clear how we should quantify IPv6 deployment. In this paper, we collect and analyze a variety of data to characterize the penetration of IPv6. We show that each analysis leads to somewhat different conclusions. For example: registry data shows IPv6 address allocations are growing rapidly, yet BGP table dumps i...

Deployment of IPv6 technology in research and commercial networks has been accelerated in the last few years. Inevitably, as more advanced services take advantage of the new technology, IPv6 traffic gradually increases. Today, there is limited experience in the deployment of Quality of Service (QoS) for IPv6 traffic in backbone networks that support the Differentiated Services framework. As ava...

Picture archiving and communication systems (PACS) require highspeed networks to transmit large image files between components. While transmitting data through public networks, privacy, authenticity, and integrity have always been some critical problems. Recent years, IPv6 brings significant improvements in mechanisms for assuring a higher level of security. In this paper, we first analyzes how...

The IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs) standard [3] enables heavily restricted IoT devices (such as wireless sensors) to connect to IPv6 networks. It is interesting to investigate how IPv6-based mobility management protocols, such as Mobile IPv6 and Proxy Mobile IPv6 are implemented on wireless sensors using the 6LoWPAN standard. In this paper, we will describe the n...

1. ABSTRACT Although as of today publicly-accessible Internet addresses are primarily IPv4, the adoption of the Internet Protocol version 6 (IPv6) is imminent, as shown in Figure 1 [1]. For example, the U.S. government established that all federal agencies must deploy IPv6 by June 2008 and news from the IPv6 Task Force reports significant progress in the adoption of IPv6 technology in other con...

IPv6 provides an expanded address space to satisfy the future Internet requirements. In this paper we compare and analyze onemonth measurements of the end-to-end IPv6 delay and hopcount between 26 testboxes of the RIPE TTM project with the corresponding parts in IPv4 network. By comparing IPv6 and IPv4 paths, we focus on problems that are only present in the IPv6 paths. In those poorly performi...

Internet Protocol Version 6 (IPv6) has been proposed as a replacement to the current networking protocol, IPv4, used in the global Internet. IPv6 represents an entirely new protocol, incorporating improved routing capability, enhanced ability to support real-time audio and video traffic, better security and privacy, as well as a much larger address space. Technical challenges and operational re...

There is increasing evidence that IPv6 deployment is maturing as a response to the exhaustion of unallocated IPv4 address blocks, leading to gradual convergence of the IPv4 and IPv6 topologies in terms of structure and routing paths. However, the lack of a fully-connected transit-free clique in IPv6, as well as a different economic evolution than IPv4, implies that existing IPv4 AS relationship...

Currently, the Internet consists of native IPv4 (IPv4-only), native IPv6, and IPv4/IPv6 dual networks. Unfortunately, IPv4 and IPv6 are incompatible protocols. When both IP versions are available and the users of Internet want to connect without any restrictions, a transition mechanism is required. During the time of migration from IPv4 to IPv6 networks, a number of transition mechanisms have b...

draft-ietf-ngtrans-6to4-03.txt This memo specifies an optional mechanism for assigning a unique IPv6 address prefix to any site that currently has at least one globally unique IPv4 address, and describes scenarios for using such a prefix during the co-existence phase of IPv4 to IPv6 transition. The motivation for this method is to allow isolated IPv6 domains or hosts, attached to an IPv4 networ...