Wu, LiuHai-Xin, DuanTao, LinXing, LiJian-Ping, WuGöbel, OliverFrings, SandraGünther, DetlefNedon, JensSchadt, Dirk2019-06-042019-06-042008978-3-88579-234-5https://dl.gi.de/handle/20.500.12116/23600Although IPv6 protocol has considered and implemented more security mechanisms compared with IPv4, there are still many security threatens in Ipv6 Networks. Being one of the key protocols in IPv6, the Internet Control Message Protocol (ICMPv6) suffers from severe security risks. In this paper we construct an IPv6 attacking test system ATS_ICMP_6 exploiting the ICMPv6 Unreachable Message, which shows that the security of IPv6 protocol is still very weak. In the other hand, we has designed and implemented a network forensics prototype 6Foren in IPv6 environment based on the protocol analysis technology, its functions include packet capture, data reconstruct and messages replay etc. the 6Foren can be used as the online digital forensics which support the online forensic of HTTP, FTP, SMTP and POP3 protocols.enText/Conference Paper1617-5468