[ovs-dev] Neighborhood solicitation and stateful DHCPv6

[Ben Pfaff]

On Wed, Sep 28, 2016 at 09:31:58PM +0500, Valentine Sinitsyn wrote:
> We are trying to set up stateful DHCPv6 (i.e. the one with dhcpv6_stateless
> = false) on current OVN master.
> 
> Connected VMs don't get DHCPv6 options unless we tell OVN the IPv6 address
> behind the logical port, and unless this address is in the subnet defined in
> DHCP_Options cidr column. However, if we add the VM's IPv6 address to
> Logical_Switch_Port addresses column, we start getting ND replies from OVN
> on its own port, and the address VM gets in DHCPv6 message fails DAD.
> 
> Does it sound like a bug, or do we miss anything?

You found a bug.  Thanks for the report!

I posted a potential fix here:
        https://patchwork.ozlabs.org/patch/676720/
Will you try it out?

Thanks,

Ben.