https://inliniac.net/blog/tag/icmpv6/ Recent content in Icmpv6 on Inliniac Hugo en Tue, 16 Oct 2007 21:35:11 +0000 https://inliniac.net/blog/2007/10/16/libnet-11-ipv6-fixes-and-additions/ Tue, 16 Oct 2007 21:35:11 +0000 https://inliniac.net/blog/2007/10/16/libnet-11-ipv6-fixes-and-additions/ <p><a href="http://www.packetfactory.net/libnet/">Libnet</a> is a cool packet crafting tool, used by <a href="http://www.snort.org/">Snort</a> to send TCP reset packets and ICMP unreachable packets as part of active responses. Libnet 1.1 supports IPv6 which is what I needed for my work. After some reading and testing there were a few problems. First, while possible to send TCP reset packets, the packets didn&rsquo;t have a correct checksum and debugging this with valgrind showed lots of memory errors. Second, ICMPv6 was only partly implemented. The libnet_build_* functions for it are missing. This is, by the way, quite a common picture. Many libraries and projects have some support for IPv6, but generally incomplete and less well tested.</p>