Unfortunately, it seems to be the case. Just saw there is a summit talk
about it called IPv6 Feature in Openstack Juno. Dual stack floating ip
support is planned in K.
However, I couldn't even get single IPv6 floating IP to work. Even though I
configured only IPv6 subnet for the external network, I got those errors
from neutron-l3-agent when associating the floating IP to instance.

Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
Command: ['sudo', '/usr/bin/neutron-rootwrap',
'/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec',
'qrouter-b243c786-4648-4d69-b749-ee5fad02069b', 'iptables-restore', '-c']
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent: Exit
code: 2
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
Stdout: ''
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
Stderr: "iptables-restore v1.4.21: host/network `2001:470:1f0f:cb4::7' not
found\nError occurred at line: 39\nTry `iptables-restore -h' or
'iptables-restore --help' for more information.\n"
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
2014-10-29 10:55:32.407 30286 ERROR neutron.agent.linux.iptables_manager
[-] IPTablesManager.apply failed to apply the following set of iptables
rules:
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
1. # Generated by iptables-save v1.4.21 on Wed Oct 29 10:55:32 2014
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
2. *raw
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
3. :PREROUTING ACCEPT [148546:23091816]
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
4. :OUTPUT ACCEPT [219:20352]
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
5. :neutron-l3-agent-OUTPUT - [0:0]
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
6. :neutron-l3-agent-PREROUTING - [0:0]
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
7. [148546:23091816] -A PREROUTING -j neutron-l3-agent-PREROUTING
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
8. [219:20352] -A OUTPUT -j neutron-l3-agent-OUTPUT
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
9. COMMIT
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
 10. # Completed on Wed Oct 29 10:55:32 2014
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
 11. # Generated by iptables-save v1.4.21 on Wed Oct 29 10:55:32 2014
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
 12. *mangle
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
 13. :PREROUTING ACCEPT [148546:23091816]
Oct 29 10:55:32 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
 14. :INPUT ACCEPT [55837:18978656]

On Thu, Oct 30, 2014 at 6:32 PM, Harm Weites <h...@weites.com> wrote:

>  I'm seeing the same error when trying to setup a whole new network
> through Horizon with external gateway and an ipv4 and ipv6 subnet. Eg,
> without floating ip.
>
> l3_agent.py is trying this: prefixlen =
> netaddr.IPNetwork(port['subnet']['cidr']).prefixlen
>
> Looking inside port[] lists the following items:
>
> 2014-10-30 10:26:05.834 21765 ERROR neutron.agent.l3_agent [-] Ignoring
> multiple IPs on router port b4d94d2a-0ba2-43f0-be5f-bb53e89abe32
> 2014-10-30 10:26:05.836 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[status] = DOWN
> 2014-10-30 10:26:05.837 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[binding:host_id] = myhostname
> 2014-10-30 10:26:05.839 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[name] =
> 2014-10-30 10:26:05.840 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[allowed_address_pairs] = []
> 2014-10-30 10:26:05.841 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[admin_state_up] = True
> 2014-10-30 10:26:05.843 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[network_id] = 00539791-0b2f-4628-9599-622fa00993b5
> 2014-10-30 10:26:05.844 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[tenant_id] =
> 2014-10-30 10:26:05.846 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[extra_dhcp_opts] = []
> 2014-10-30 10:26:05.847 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[binding:vif_details] = {}
> 2014-10-30 10:26:05.848 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[binding:vif_type] = binding_failed
> 2014-10-30 10:26:05.849 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[device_owner] = network:router_gateway
> 2014-10-30 10:26:05.851 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[mac_address] = fa:16:3e:53:89:8d
> 2014-10-30 10:26:05.853 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[binding:profile] = {}
> 2014-10-30 10:26:05.854 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[binding:vnic_type] = normal
> 2014-10-30 10:26:05.856 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[fixed_ips] = [{u'subnet_id': u'faaf9c91-19ce-4c14-8f86-c81949cdbac5',
> u'ip_address': u'192.168.64.30'}, {u'subnet_id':
> u'381d0c54-1a4e-4a27-9858-a81202e81487', u'ip_address':
> u'2001:470:ffff:64::aaaa'}]
> 2014-10-30 10:26:05.857 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[id] = b4d94d2a-0ba2-43f0-be5f-bb53e89abe32
> 2014-10-30 10:26:05.858 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[security_groups] = []
> 2014-10-30 10:26:05.860 21765 INFO neutron.agent.l3_agent [-] CHECK:
> port[device_id] = d3bbec5a-2075-4229-ba88-698f27cd0943
>
> _set_subnet_info() is set to log an ERROR when it encounters multiple
> addresses and then happily continues doing something:
>
>  prefixlen = netaddr.IPNetwork(port['subnet']['cidr']).prefixlen
>  port['ip_cidr'] = "%s/%s" % (ips[0]['ip_address'], prefixlen)
>
> Operations with just 1 (ipv6) ip go without any issues, the adress is
> added to a namespace and pongs just fine. Adding 2 subnets to this external
> net and creating a gateway to it on the l3 router causes a problem.
>
> Do we need to wait for K before we can fully go dual-stack?
>
> - Harm
>
> op 29-10-14 15:29, Jerry Xinyu Zhao schreef:
>
>  Hi
> I want to use both ipv4 and ipv6 for floating ip at the same time.
> However, I have the following issue when setting router gateway or
> associate floating ip to an instance.
> Is it supported in the first place? What should I do to make it work?
> Thanks!
>
>  neutron router-list
>
> +--------------------------------------+----------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+
> | id                                   | name           |
> external_gateway_info
>
>
>                                                   | distributed | ha    |
>
> +--------------------------------------+----------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+
> | b243c786-4648-4d69-b749-ee5fad02069b | default-router | {"network_id":
> "02eca54a-420d-4d52-b045-1207e17994e5", "enable_snat": true,
> "external_fixed_ips": [{"subnet_id":
> "a188333f-77c3-40d9-9048-e733c4da30b1", "ip_address": "162.3.123.51"},
> {"subnet_id": "14d9dd91-b315-43bc-818d-ab21f62c1ebb", "ip_address":
> "2001:470:1f0f:cb4::7"}]} | False       | False |
>
> +--------------------------------------+----------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------+-------+
>
>
>  neutron-l3-agent log:
>
>  Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 ERROR neutron.agent.l3_agent [-] Ignoring
> multiple IPs on router port 18c8874c-f9a0-4274-8f38-fab3da754c2b
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 ERROR neutron.agent.l3_agent [-] 'subnet'
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent Traceback (most
> recent call last):
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent   File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/common/utils.py",
> line 341, in call
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent     return
> func(*args, **kwargs)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent   File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 948, in process_router
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent
> self._set_subnet_info(ex_gw_port)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent   File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 864, in _set_subnet_info
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent     prefixlen =
> netaddr.IPNetwork(port['subnet']['cidr']).prefixlen
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent KeyError:
> 'subnet'
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> 2014-10-29 14:10:08.941 30286 TRACE neutron.agent.l3_agent
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> Traceback (most recent call last):
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/eventlet/greenpool.py",
> line 82, in _spawn_n_impl
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> func(*args, **kwargs)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 1837, in _process_router_update
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> self._process_router_if_compatible(router)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 1812, in _process_router_if_compatible
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> self.process_router(ri)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/common/utils.py",
> line 344, in call
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> self.logger(e)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/openstack/common/excutils.py",
> line 82, in __exit__
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> six.reraise(self.type_, self.value, self.tb)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/common/utils.py",
> line 341, in call
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> return func(*args, **kwargs)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 948, in process_router
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> self._set_subnet_info(ex_gw_port)
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> File
> "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
> line 864, in _set_subnet_info
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> prefixlen = netaddr.IPNetwork(port['subnet']['cidr']).prefixlen
> Oct 29 14:10:08 overcloud-controller0-ghqtsmsgjgck neutron-l3-agent:
> KeyError: 'subnet'
>
>
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