CONTENTS

 1     Scope 
 2     References 
 3     Definitions  
        3.1     Terms defined elsewhere    
        3.2     Terms defined in this Recommendation       
 4     Abbreviations and acronyms        
 5     Conventions     
 6     Overview of IP-based networks  
        6.1     Classification of IP-based networks           
        6.2     Key features of IPv6-based networks compared with IPv4-based  
 7     Overview of IPv6-based NGN    
        7.1     Definition of IPv6-based NGN      
        7.2     Functional architecture of IPv6-based NGN           
        7.3     Impact of using IPv6 to NGN        
        7.4     Relationships with other IP-based networks           
 8     General requirements of IPv6-based NGN           
 9     Security considerations    
Bibliography