Aruba ipv6, did anyone succeed?

Question

Network administration

Has anyone managed to raise ipv6 in ArubaCloud?
I register in /etc/networks/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
        address x.x.x.x
        netmask 255.255.255.0
        gateway x.x.x.x
        #dns-nameservers 8.8.8.8 8.8.4.4

iface eth0 inet6 static
        address 2001:16e8:110:8270::xx:xx
        netmask 64
        gateway 2001:16e8:110:8270::1
        dns-nameservers 2001:4860:4860::8888 2001:4860:4860::8844 8.8.8.8

I get as a result:
[email protected]:/home/master# ping 8.8.8.8
64 bytes from 8.8.8.8: icmp_seq=1 ttl=124 time=3.52 ms
[email protected]:/home/master# ping google.com
From 2001: 16e8:110:8270::xx:xx (2001:16e8:110:8270::xx:xx) icmp_seq=1 Destination unreachable: Address unreachable
[email protected]:/home/master# ping 2001:4860:4860::8888
From 2001:16e8:110:8270::xx:xx icmp_seq=1 Destination unreachable: Address unreachable

Answer 1

Is support enabled in settings?
As far as I remember, 2001:: is localhost and you need to ping ipv6.google.com
Your network should be approximately in this segment 2a00:6d40::

Answer 2

Where did you get gateway 2001:16e8:110:8270::1 from?
Now it is fashionable to specify the link-local address with a getaway (with an explicit indication of the interface, since there is a link-local address on each interface):

iface eth0 inet6 static
        address 2001:16e8:110:8270::xx:xx/64
        gateway  fe80::1
...