Proxmox v5 IPV6



I’m trying to add IPv6 on my dedibox. I get a /56 and a /64.

Here is my configuration :

cat /etc/dhcp/dhclient6.conf
interface "vmbr0" {
   send dhcp6.client-id	<DUID>;
cat /etc/network/interfaces
auto lo
iface lo inet loopback

allow-hotplug enp0s20

iface enp0s20 inet manual

auto vmbr0
iface vmbr0 inet static
	address  163.172.24.XXX
	accept_ra 2
	bridge_ports enp0s20
	bridge_stp off
	bridge_fd 0

iface vmbr0 inet6 static
	address  2001:bc8:XXXX::1
	netmask  64
net.ipv6.conf.all.accept_ra = 2

When I run dhclient with this command, dhclient remove ipv6 address ???
dhclient -cf /etc/dhcp/dhclient6.conf -6 -P -v vmbr0

I seems I got a lease but I have to restart networking service in order to add IPv6 address on vmbr0. and then it works.

I opened a ticket but Online wasn’t able to help me.


Hi, it seams you are running into an issue that looks like mine :

Did you solve your problem or did you just accepted your fate ?