Cisco IOS 12.0 network security / 
Cisco Systems, Inc. 
 - Indianapolis, Ind. :  Cisco Press,  1999. 
 - xliii, 912 p. 
 - Cisco IOS reference library .
<br/><br/> La cubierta dice: " Cisco documentation" 
<br/><br/><label>ISBN: </label>1-57870-160-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computación, redes de - Medidas de Seguridad
<br/><br/><label>Dewey Class. No.: </label>004.68  / C579