mopPutHeader
void mopPutHeader(u_char *, int *, u_char *, u_char *, u_short, int);
mopPutHeader(pkt, &idx, dst, src, MOP_K_PROTO_DL, trans);
mopPutHeader(pkt, &idx, dst, src, MOP_K_PROTO_DL, trans);
mopPutHeader(pkt, &idx, dst, src, MOP_K_PROTO_DL, trans);