Assign IPv6 for VM

[thapana]

Hi,
First of all thank you all the staff and community for this awesome product !
I am in
For being a fresh member, I met some problems, VM has assigned IPv6, but no route.

VM:

[root@localhost ~]# ip -6 ro
unreachable ::/96 dev lo metric 1024 pref medium
unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 pref medium
unreachable 2002:a00::/24 dev lo metric 1024 pref medium
unreachable 2002:7f00::/24 dev lo metric 1024 pref medium
unreachable 2002:a9fe::/32 dev lo metric 1024 pref medium
unreachable 2002:ac10::/28 dev lo metric 1024 pref medium
unreachable 2002:c0a8::/32 dev lo metric 1024 pref medium
unreachable 2002:e000::/19 dev lo metric 1024 pref medium
2604:x:x:x::/64 dev eth0 proto ra metric 100 pref medium
unreachable 3ffe:ffff::/32 dev lo metric 1024 pref medium
fe80::/64 dev eth0 proto kernel metric 100 pref medium
default via 2604:x:x:x::1 dev eth0 metric 1 pref medium
default via fe80::18b8:18ff:fe18:1f86 dev eth0 proto ra metric 100 pref medium
[root@localhost ~]#
-----
[root@localhost ~]# ping6 ipv6.google.com
PING ipv6.google.com(ord38s18-in-x0e.1e100.net (2607:f8b0:4009:804::200e)) 56 data bytes
^C
--- ipv6.google.com ping statistics ---
7 packets transmitted, 0 received, 100% packet loss, time 6146ms
[root@localhost ~]#

The host have /64 IPv6, it works well
I want to assign IPv6 for VM
I have installed radvd, proxy_ndp.
The main interface I use auto for IPv6, the gateway for IPv6 is 2604:x:x:x::/64

interfaces ipv6 part
---------

face enp2s0f0 inet6 auto
    dns-servers 2606:4700:4700::1111 2606:4700:4700::1001

auto vmbr0
iface vmbr0 inet6 static
    address 2604:x:x:x::1/64
    bridge_ports none
    bridge_stp off
    bridge_fd 0
    post-up ip -6 route add 2604:x:x:x::/64 dev vmbr0

---------


sysctl.conf
-----

net.ipv6.conf.default.forwarding=1
net.ipv6.conf.lo.forwarding = 1
net.ipv6.conf.all.forwarding=1
net.ipv6.conf.default.proxy_ndp=1
net.ipv6.conf.all.proxy_ndp=1

-------

radvd.conf

-------

interface vmbr0 {
    AdvSendAdvert on;
    MinRtrAdvInterval 30;
    MaxRtrAdvInterval 100;
    prefix 2604:x:x:x::/64
    {
        AdvOnLink on;
        AdvAutonomous on;
        AdvRouterAddr on;
    };
    RDNSS 2606:4700:4700::1111 2606:4700:4700::1001    
    {
        AdvRDNSSLifetime 100;
        AdvRDNSSPreference 8;
    };
};

-----

How to correct?
Thanks in advance.