doubt in IPv6 Default address selection

[Jayabharathi]

Hi ,   I got a doubt while reading rfc 3484(Default Address Selection for Internet protocol version 6).   The deafult policy table is given as follows,   Prefix        Precedence Label       ::1/128               50     0       ::/0                      40     1       2002::/16           30     2       ::/96                    20     3       ::ffff:0:0/96         10     4   If a destination address which is not mapping to any of the listed prefixes in the policy table, what should be the precedence value to be used.   For example, a destination address prefix 3ffe::/16 is given, what should be the precedence used in this case???   One more doubt,   Each and every prefix presented in the default policy table maps to an unique address type, Can't we make it as address type, instead of Prefix while implementing the same.   Pls clarify   regds Jaya