Ceph » RADOS

Hi,

I have an ipv4 only public network.
I created an ipv6 only cluster network (full mesh - 3 nodes - OSPF)

In my ceph.cfg:
cluster_network = fc00::/64
public_network = 192.168.x.x/24
ms_bind_ipv6 = true

But the osd fail to start:
unable to find any IPv6 address in networks '192.168.x.x/24' interfaces ''
Failed to pick public address.

I did try to add ipv6 to the public interface and to provide ip addresses to seach

The documentation seems to invalidate the option : https://docs.ceph.com/en/latest/rados/configuration/network-config-ref/#ipv4-ipv6-dual-stack-mode
=> ...you need to specify both your IPv4 and IPv6 networks for each

How can I run a cluster_network in ipv6 only, keeping the public_network in ipv4 ? Is it just impossible for now ? Why ?