** Features **
1. Handling of non-temporary addresses
- a) assignment of addresses to source interface
- b) handling of valid and preferred lifetimes
- c) duplicate address detection
+ a) handling of valid and preferred lifetimes
+ b) duplicate address detection
+ c) automatic fallback to stateless or PD-only mode
2. Support for DHCPv6 extension
a) Reconfigure-Messages
d) DNS Configuration Options
e) NTP Options
f) SIP Options
+ g) Information-Refresh Options
+ h) SOL_MAX_RT default to 3600
3. Stateless fallback-support