A Host-based Investigation of IPv6 in Academia: The Cases of Japan and Vietnam <Abstract> This paper introduces a host-based method for investigating IPv6 adoption and performance in academia that targets universities in Japan and Vietnam. Unlike other works, the investigation has been utilized on a host native IPv6 host with a standard tool (i.e., curl). We first probe the IPv6 capabilities of the universitiesf websites. Second, within the IPv6-supported websites, we compare the performances of IPv4 and IPv6 when letting the two IP versions access the websites concurrently. We find that, despite the popularity of IPv6 in the two countries, a significant number of academic websites are not yet IPv6 capable. The native IPv6 client can only access fifty of the more than one thousand websites in Japan. Furthermore, there are no IPv6-supported websites at Vietnamese universities. Among the accessible IPv6 websites in Japan, we observe that the web access performances of IPv4 and IPv6 are similar. |