ICMP6_DST_UNREACH_NOTNEIGHBOR
{ ICMP6_DST_UNREACH_NOTNEIGHBOR, "neighbour" },
{ "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR },
ICMP6_DST_UNREACH_NOTNEIGHBOR, /* 5: ICMP_UNREACH_SRCFAIL */
#ifndef ICMP6_DST_UNREACH_NOTNEIGHBOR
case ICMP6_DST_UNREACH_NOTNEIGHBOR: