Raman spectra of totally symmetric nu(1), nu(2) bands and three doubly degenerate nu(15), nu(16), nu(17) bands of liquid benzene-d(6) confined to porous silica glasses with pore size ranging from 14 to 40 Angstrom (average pore radius) were measured at T = 295 K and atmospheric pressure. The vibrational relaxation rate, tau(vib)(-1), and the reorientational relaxation time, tau(reo) (and the perpendicular diffusion constant D-perpendicular to), were obtained from the totally symmetric nu(2) band using the standard method. The parallel diffusion constant D-parallel to was obtained from the doubly degenerate nu(16) band using a method originally suggested by Tanabe. The results show that tau(vib)(-1) and both D-perpendicular to and D-parallel to are significantly affected by the confinement. As pore size decreases, tau(vib)(-1) increases, while both D-perpendicular to and D-parallel to decrease. The dependence of tau(vib)(-1) and tau(reo) on the pore size scales as 1/R, indicating a dominant surface interaction effect. Comparing the relative changes of D-perpendicular to and D-parallel to to their bulk liquid values, D-parallel to is affected to a lesser extent by the confinement. Consequently, the overall rotation of benzene molecules in nanopores becomes increasingly anisotropic with increasing confinement.