The slow adoption of IPv6 protocol by organizations has led to internet service providers (ISP) investing minimal resources in setting up IPv6 Internet connectivity, ultimately resulting in sub optimally tuned IPv6 Internet routing fabric. The altogether different IPv6 packet header with more bits for the IP address, no header checksum, and no intermediate fragmentation features, are expected to give a palpably different experience to the users. With different levels of expertise and different connectivity links to the Internet, available with different ISPs, responses of the destined networks may also vary for each ISP. Therefore, it is worth to investigate ISP wise IPv6 Internet responses from an organization user’s point of view. In this paper, we present a research methodology to estimate IPv6 responses to the users of an organization for destinations present in current IPv4 traffic profile, without actually accessing the IPv6 network. We use publicly available centre for applied internet data analysis (CAIDA) IPv6 topology and autonomous systems (AS) links datasets to analyse and infer the intermediate AS level responses, for estimating responses between source and destination networks. As a case study, we take three Indian ISPs and apply the methodology to compare ISP wise responses for a network of about 2000 nodes. The results of the same are presented in this paper. We conclude that considering all other factors to be the same, the best possible quality of experience (QoE) for the Internet users of the organization, can be achieved by smart selection of the IPv6 ISP.

组织对IPv6协议的缓慢采用导致互联网服务提供商（ISP）在建立IPv6 Internet连接方面投入了最少的资源，最终导致对IPv6 Internet路由结构进行了次优优化。完全不同的IPv6数据包报头，具有更多的IP地址位，没有报头校验和，没有中间分段功能，可以为用户带来明显不同的体验。由于不同的ISP具有不同的专业知识水平和与Internet的不同连接链接，因此对于每个ISP，目的地网络的响应也可能有所不同。因此，值得从组织用户的角度研究ISP明智的IPv6 Internet响应。在本文中，我们提出了一种研究方法，用于估计组织的用户对IPv6的响应，以了解当前IPv4流量配置文件中存在的目的地，而无需实际访问IPv6网络。我们使用公开可用的中心来应用Internet数据分析（CAIDA）IPv6拓扑，并使用自治系统（AS）链接数据集来分析和推断中间的AS级响应，以估计源网络和目标网络之间的响应。作为案例研究，我们采用了三个印度ISP，并应用该方法来比较约2000个节点的网络的ISP明智的响应。本文介绍了相同的结果。我们得出的结论是，在所有其他因素都相同的情况下，可以通过明智地选择IPv6 ISP来实现组织互联网用户的最佳体验质量（QoE）。