I have a centos load balancer using piranha and direct routing. This uses arptables on the real servers to keep them from claiming the virtual ipv4 addresses. I would like to expand this setup to support ipv6 as well. So far, the only option I've found is to use the iptables solution instead of arptables with ip6tables and a TPROXY target, but I'm not sure that will work as well. Is there an arptables-like solution for neighbor discovery?