- supported sticky routing header - use IPV6_UNICAST_HOPS after failure of IPV6_HOPLIMIT (obsoleted)
- supported sticky routing header
- use IPV6_UNICAST_HOPS after failure of IPV6_HOPLIMIT (obsoleted)

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame