00477nam a22001457a 4500008004100000020001500041040005500056080001800111100001900129245006000148260005900208300001700267650002500284653002200309230329b        |||||||| |||| 00| 0 eng d  a1558605754  aNational Science LibrarycNational Science Library  aD 681.324bN9  aFowler, Dennis  aVirtual private networks: bMaking the right connection  aCalifornia: bMorgan Kaufmann Publishers, Inc., c1999  axviii, 222p.  aBusiness enterprises  aComputer networks