NET_IPV6_TEMP_PREFERED_LFT 485 kernel/sysctl_check.c { NET_IPV6_TEMP_PREFERED_LFT, "temp_prefered_lft" }, NET_IPV6_TEMP_PREFERED_LFT 4138 net/ipv6/addrconf.c .ctl_name = NET_IPV6_TEMP_PREFERED_LFT,