Proxmox Node IPv4 static IPv6 SLAAC config

[Enthylsa]

Hi everyone, I have 2 Proxmox nodes within my local home network. I've configured them IPv4 only with static IPs.

Because in this config, they don't have IPv6 and therefore cannot access IPv6 only servers I want to add IPV6 SLAAC config but unfortunately it does not work, the nodes only have a local fe80:: address.

Can someone help with the correct config?

This is my current /etc/network/interfaces:

auto lo
iface lo inet loopback

iface eno1 inet manual

iface eno1 inet6 manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.15.16/24
        gateway 192.168.15.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0

iface vmbr0 inet6 auto

And this is the current IPv6 addresses on one node:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::223:24ff:feb5:77c7/64 scope link
       valid_lft forever preferred_lft forever

The VMs and LCX container have IPv6 addresses with SLAAC and can communicate with IPv6 only servers.

 

[pxm0x]

I actually have the same or similar issue:

iface enp111s0 inet manual
#i210-AT (NO VLAN support)

auto vmbr0
iface vmbr0 inet static
        address 192.168.199.4/24
        gateway 192.168.199.1
        bridge-ports enp111s0
        bridge-stp off
        bridge-fd 0
iface vmbr0 inet6 static
        address fdee::4/64
        accept_ra 2
        bridge-ports enp111s0
        bridge-stp off
        bridge-fd 0
#Mgmt LAN

with this config I can only fe80 and the statid fdee ipv6 addresses. The SLAAC which is working on the network segment doesn't get actived.
what can I do to assign SLLAC IPv6 to my LAN mgmt address?

I also tried various variants like
iface vmbr0 inet6 auto
but with no success!