addrconf_mod_dad_work
addrconf_mod_dad_work(ifp2, net->ipv6.sysctl.idgen_delay);
addrconf_mod_dad_work(ifp, 0);
addrconf_mod_dad_work(ifp, rand_num);
addrconf_mod_dad_work(ifp, 0);
addrconf_mod_dad_work(ifp,