000			00331 a2200133 4500
020			_a8120324102
082			_a005.8 _bBAS
090			_c3106 _d3822
245			_aBasics of network security firewalls and VPNs
260			_aNew Delhi _bPrentice-Hall _c2003 _g2005
300			_ax, 294p. _c23cm.
650			_aDATA SECURITY
942			_cL
999			_c32133 _d32133