[libvirt] IPv6 subnet on virbr0

Hello, in a common scenario where there aren't enough public IPv4 addresses for all domains, I have elaborated this workaround: - the host operates a sixxs.net IPv6 tunnel with aiccu. - the virbr0 interface is manually configured an IPv6 address within a /64 subnet delegated by sixxs.net. (I do this from /etc/rc.local for lack of a better place) - radvd runs on the host to autoconfigure IPv6 for the guests on virbr0 and advertise the host as a gateway With this setup, all machines are globally addressable from the IPv6 internet, which is still quite useful for backstage services such as a build farm. In order to automate this setup, libvirt should support configuring an IPv6 address on bridged interfaces, and possibly multiple addresses for dual stack setups. Automatically running radvd would make a nice goodie. -- // Bernie Innocenti - http://codewiz.org/ \X/ Sugar Labs - http://sugarlabs.org/