Hi, I am trying to modify host ID generation process for IPv6 addresses. Currently it generates host ID using ipv6_generate_eui64() in addrconf.c and start DAD for newly generated address. If DAD fails, it calls addrconf_dad_failure() and disables IPv6 on the interface using idev->cnf.disable_ipv6=1. I have used different algorithm for generating the host ID. What I want to do now is that if DAD fails, it should remove previously generated IPv6 address (host ID) and start over. Any idea how to do that? -- Rohan D. Doshi