ETHERTYPE_MPLS
b0 = gen_linktype(ETHERTYPE_MPLS);
eh->ether_type = htons(ETHERTYPE_MPLS);
case ETHERTYPE_MPLS:
case htons(ETHERTYPE_MPLS):
proto = htons(ETHERTYPE_MPLS);
#ifndef ETHERTYPE_MPLS
case ETHERTYPE_MPLS:
case ETHERTYPE_MPLS:
case ETHERTYPE_MPLS: