How to route public ipv6 address to private lxc container address

ipv6lxcnetworkingrouting

I have a pool of public ipv6 address I want to use to expose lxc containers.

On the host machine I created a macvlan interface eth0-macvlan and bound a public address to it 2600:3c01:e000:83::1/64. I then bound the containers eth1 to and address on the same subnet 2600:3c01:e000:83::11/64 I can ping the container address from the host machine, but not the internet. Do I need to add a route? I might be doing this completely wrong. 

eth0      Link encap:Ethernet  HWaddr f2:3c:91:6e:25:63
          inet addr:173.230.156.218  Bcast:173.230.156.255  Mask:255.255.255.0
          inet6 addr: fe80::f03c:91ff:fe6e:2563/64 Scope:Link
          inet6 addr: 2600:3c01::f03c:91ff:fe6e:2563/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:955129 errors:0 dropped:0 overruns:0 frame:0
          TX packets:547825 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1369203060 (1.3 GB)  TX bytes:59723654 (59.7 MB)

eth0-macvlan Link encap:Ethernet  HWaddr 1e:dd:2e:bf:86:3a
          inet6 addr: fe80::1cdd:2eff:febf:863a/64 Scope:Link
          inet6 addr: 2600:3c01:e000:83::1/64 Scope:Global
          inet6 addr: 2600:3c01::1cdd:2eff:febf:863a/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3061 errors:0 dropped:0 overruns:0 frame:0
          TX packets:78 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:360888 (360.8 KB)  TX bytes:7069 (7.0 KB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:196 errors:0 dropped:0 overruns:0 frame:0
          TX packets:196 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:24808 (24.8 KB)  TX bytes:24808 (24.8 KB)

lxcbr0    Link encap:Ethernet  HWaddr 06:9d:8f:ec:b6:e1
          inet addr:10.0.3.1  Bcast:10.0.3.255  Mask:255.255.255.0
          inet6 addr: fe80::49d:8fff:feec:b6e1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:648 (648.0 B)

vethDqo9GU Link encap:Ethernet  HWaddr 4e:e4:a8:3d:cf:f5
          inet6 addr: fe80::4ce4:a8ff:fe3d:cff5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:648 (648.0 B)  TX bytes:648 (648.0 B)

LXC container:

eth0      Link encap:Ethernet  HWaddr da:e0:6a:b5:8b:b0
          inet addr:172.17.0.2  Bcast:0.0.0.0  Mask:255.255.0.0
          inet6 addr: fe80::d8e0:6aff:feb5:8bb0/64 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:648 (648.0 B)  TX bytes:648 (648.0 B)

eth1      Link encap:Ethernet  HWaddr 8e:29:ed:5d:0a:6d
          inet6 addr: 2600:3c01::8c29:edff:fe5d:a6d/64 Scope:Global
          inet6 addr: fe80::8c29:edff:fe5d:a6d/64 Scope:Link
          inet6 addr: 2600:3c01:e000:83::11/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:68 errors:0 dropped:0 overruns:0 frame:0
          TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:7047 (7.0 KB)  TX bytes:4034 (4.0 KB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

UPDATE
Since the original posting I've setup radvd and a bridge interface br0 Here is my radvd.conf

interface eth0 {
MinRtrAdvInterval 3;
MaxRtrAdvInterval 10;
AdvSendAdvert on;
AdvLinkMTU 1480;
# Prefix of what i'm advertising
    prefix 2600:3c01:e000:0083::/64 {
        AdvOnLink on;
        AdvAutonomous on;
        AdvRouterAddr on;
    };
};

interface br0 {
MinRtrAdvInterval 3;
MaxRtrAdvInterval 10;
AdvSendAdvert on;
AdvLinkMTU 1480;
# Prefix of what i'm advertising
    prefix 2600:3c01:e000:0083::/64 {
        AdvOnLink on;
        AdvAutonomous on;
        AdvRouterAddr on;
    };
};

ip -6 r:

HOST:
    2600:3c01::/64 dev eth0  proto kernel  metric 256  expires 2545193sec
    fe80::/64 dev eth0  proto kernel  metric 256
    fe80::/64 dev br0  proto kernel  metric 256
    fe80::/64 dev veth334e  proto kernel  metric 256

CONTAINER:
    2600:3c01:e000:83::/64 dev eth0  proto kernel  metric 256  expires 86395sec
    fe80::/64 dev eth0  proto kernel  metric 256
    default via fe80::f83b:3bff:fef6:3759 dev eth0  proto ra  metric 1024  expires 25sec

Best Answer

I would expect you to have a different /64 on either side of the server. You will need to configure bridge the interfaces to make the routing work correctly.

Normally, your provider will provide a block of /64 networks for your use. You can then configure these on your internal network, and normal routing will make the addresses available externally. You would run a radvd process to allow hosts to autoconfigure, or manually configure addresses.

WARNING: These IPv6 addresses are globally routable. Access controls need to be considered.

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