HelenOS sources

ICMPV6_NEIGHBOUR_SOLICITATION  148 uspace/srv/net/inetsrv/icmpv6.c 	case ICMPV6_NEIGHBOUR_SOLICITATION:
ICMPV6_NEIGHBOUR_SOLICITATION  108 uspace/srv/net/inetsrv/ndp.c 	case ICMPV6_NEIGHBOUR_SOLICITATION:
ICMPV6_NEIGHBOUR_SOLICITATION  170 uspace/srv/net/inetsrv/ndp.c 	packet.opcode = ICMPV6_NEIGHBOUR_SOLICITATION;
ICMPV6_NEIGHBOUR_SOLICITATION  496 uspace/srv/net/inetsrv/pdu.c 	if (ndp->opcode == ICMPV6_NEIGHBOUR_SOLICITATION) {
HelenOS homepage, sources at GitHub