ICMPV6_ROUTER_PREF_MEDIUM 1164 net/ipv6/ndisc.c 		pref = ICMPV6_ROUTER_PREF_MEDIUM;
ICMPV6_ROUTER_PREF_MEDIUM  483 net/ipv6/route.c 		pref = ICMPV6_ROUTER_PREF_MEDIUM;