5 Jun
                
                    2012
                
            
            
                5 Jun
                
                '12
                
            
            
            
        
    
                10:37 p.m.
            
        Sure, but with the neighbor discovery cache issues that come up with
/64's under attack, why open yourself to trouble where you can't realize any benefit?
I happen to be a fan of /126s, but if you chose to use a /64, presumably your infrastructure ACLs would provide protection against such attacks.