+3. Support for DHCPv6 extension
+ a) Reconfigure-Messages
+ b) Prefix Delegation (including handling of valid and preferred lifetimes)
+ c) Prefix Exclusion
+ d) DNS Configuration Options
+ e) NTP Options
+ f) SIP Options
+ g) Information-Refresh Options
+ h) Configurable SOL_MAX_RT
+ i) DS-Lite AFTR-Name Option
+ j) Softwire address and port mapped clients (MAP, LW4over6)
+ j) CER-ID (experimental)