TY  - BOOK
AU  - Hooper,Howard
TI  - CCNP security VPN: 642-647 official cert guide 
SN  - 9781587142567 (hardcover w/cd)
PY  - 2012///
CY  - Indianapolis, IN
PB  - Cisco Press
KW  - Extranets (Computer networks)
KW  - Examinations
KW  - Study guides
KW  - Computer networks
KW  - Security measures
KW  - Telecommunications engineers
KW  - Certification
N1  - Includes index
ER  -