[libvirt] [PATCH] network: fix DHCPv6 on networks with prefix != 64

[Cole Robinson]

On 04/21/2016 02:10 PM, Laine Stump wrote:
> According to the dnsmasq manpage, the netmask for IPv4 address ranges
> will be auto-deteremined from the interface dnsmasq is listening on,
> but it can't do this for IPv6 for some reason - it instead assumes a
> network prefix of 64 for all IPv6 address ranges. If this is
> incorrect, dnsmasq will refuse to give out an address to clients,
> instead logging this message:
> 
>  dnsmasq-dhcp[2380]: no address range available for DHCPv6 request via virbr0
> 
> The solution is for libvirt to add ",$prefix" to all IPv6 dhcp-range
> arguments when building the dnsmasq.conf file.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1033739

ACK, and I confirmed it fixes things for me too

Thanks,
Cole