Davis, Carlton R. <br/><br/>
IPSec : securing VPNs  
Carlton R. Davis 
 - Berkeley, Calif. :  Osborne/McGraw-Hill,  cop. 2001 
 - xix, 404 s. :  ill. 
<br/><br/> IPSec = IP Security  VPN = Virtual Private Network 
<br/><br/><label>ISBN: </label>0-07-212757-0 (hft.)