* Make ula_prefix a global option
* Add preliminary support for NAT (Linux >= 3.7, ip6tables >= 1.4.17)
* Minor fixes for prefix fallback
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34586 3c298f89-4303-0410-b956-a3cf2f4a3e73
* mode 'downstream' renamed to 'router'
* mode 'upstream' renamed to 'dhcpv6'
* mode 'relay' added
* cleanups and minor bugfixes in state handling
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34466 3c298f89-4303-0410-b956-a3cf2f4a3e73