00362nam a2200121Ia 4500008004100000020001800041041000800059082002300067100002300090245007900113260004000192300000800232211209s1999    xx            000 0 und d  a0-471-34467-2  aeng  a005.82 N99 KAU/NEW  aKAUFMAN, ELIGABETH  aIMPLEMENTING IPSEC: MAKING SECURITY WORK ON VPNS, INTRANETS AND EXTRANETS   aNEW YORKbJOHN WILEY AND SONSc1999  a271