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[neutron] DevStack with IPv6


Hmm OK, I'll try to figure out what hacking create_neutron_initial_network
does...

BTW, I noticed that I can ping6 the router interface at private subnet from
the DevStack host:

$ ping6 fd12:67:1:1::1
PING fd12:67:1:1::1(fd12:67:1:1::1) 56 data bytes
64 bytes from fd12:67:1:1::1: icmp_seq=1 ttl=64 time=0.646 ms
64 bytes from fd12:67:1:1::1: icmp_seq=2 ttl=64 time=0.095 ms
64 bytes from fd12:67:1:1::1: icmp_seq=3 ttl=64 time=0.106 ms
64 bytes from fd12:67:1:1::1: icmp_seq=4 ttl=64 time=0.129 ms

And also I can ping6 the public subnet interface from the VM:

root at ubuntu:~# ping6 fd12:67:1::3c
PING fd12:67:1::3c (fd12:67:1::3c): 56 data bytes
ping: getnameinfo: Temporary failure in name resolution
64 bytes from unknown: icmp_seq=0 ttl=64 time=2.079 ms
ping: getnameinfo: Temporary failure in name resolution
64 bytes from unknown: icmp_seq=1 ttl=64 time=1.385 ms
ping: getnameinfo: Temporary failure in name resolution
64 bytes from unknown: icmp_seq=2 ttl=64 time=0.881 ms

Not sure if it means that there's something missing within the router
itself...

On Fri, Sep 13, 2019 at 2:24 PM Donny Davis <donny at fortnebula.com> wrote:

> Also I have no v6 address on my br-ex
>
> On Fri, Sep 13, 2019 at 1:22 PM Donny Davis <donny at fortnebula.com> wrote:
>
>> Well here is the output from my rule list that is in prod right now with
>> ipv6
>>
>> +--------------------------------------+-------------+-----------+------------+-----------------------+
>> | ID                                   | IP Protocol | IP Range  | Port
>> Range | Remote Security Group |
>>
>> +--------------------------------------+-------------+-----------+------------+-----------------------+
>> | 9ab00b6f-2bc2-4554-818d-eff6e0570943 | None        | 0.0.0.0/0 |
>>      | None                  |
>> | b6df5801-8c2c-4ba4-afe1-2cbaa2922dfa | icmp        | ::/0      |
>>      | None                  |
>> | e7fd4840-5fbd-4709-b918-f80eac5cb6da | None        | ::/0      |
>>      | None                  |
>> | e9968d53-7efe-4a9e-ad42-1092ffaf52e7 | None        | None      |
>>      | None                  |
>> | ec1ea961-9025-4229-92cf-618026a1851b | None        | None      |
>>      | None                  |
>>
>> +--------------------------------------+-------------+-----------+------------+-----------------------+
>>
>>
>> +-------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>> | Field             | Value
>>
>>                                                                    |
>>
>> +-------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>> | created_at        | 2019-07-30T00:50:25Z
>>
>>                                                                     |
>> | description       |
>>
>>                                                                    |
>> | direction         | ingress
>>
>>                                                                    |
>> | ether_type        | IPv6
>>
>>                                                                     |
>> | id                | b6df5801-8c2c-4ba4-afe1-2cbaa2922dfa
>>
>>                                                                     |
>> | location          | Munch({'cloud': '', 'region_name': 'regionOne',
>> 'zone': None, 'project': Munch({'id': 'e8fd161dc34c421a979a9e6421f823e9',
>> 'name': 'openstackzuul', 'domain_id': None, 'domain_name': 'Default'})}) |
>> | name              | None
>>
>>                                                                     |
>> | port_range_max    | None
>>
>>                                                                     |
>> | port_range_min    | None
>>
>>                                                                     |
>> | project_id        | e8fd161dc34c421a979a9e6421f823e9
>>
>>                                                                     |
>> | protocol          | icmp
>>
>>                                                                     |
>> | remote_group_id   | None
>>
>>                                                                     |
>> | remote_ip_prefix  | ::/0
>>
>>                                                                     |
>> | revision_number   | 0
>>
>>                                                                    |
>> | security_group_id | bcedc0e0-e2e8-41fc-aeaa-afd2e10c7ab6
>>
>>                                                                     |
>> | tags              | []
>>
>>                                                                     |
>> | updated_at        | 2019-07-30T00:50:25Z
>>
>>                                                                     |
>>
>> +-------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>
>>
>>
>>
>>
>> On Fri, Sep 13, 2019 at 9:24 AM Lucio Seki <lucioseki at gmail.com> wrote:
>>
>>> Hi Donny, following are the rules:
>>>
>>> $ openstack security group list --project admin
>>>
>>> +--------------------------------------+---------+------------------------+----------------------------------+------+
>>> | ID                                   | Name    | Description
>>>  | Project                          | Tags |
>>>
>>> +--------------------------------------+---------+------------------------+----------------------------------+------+
>>> | d0136b0e-ee51-461c-afa0-c5adb88dd0dd | default | Default security
>>> group | 68e3942285a24fb5bd1aed30e166aaee | []   |
>>>
>>> +--------------------------------------+---------+------------------------+----------------------------------+------+
>>>
>>> $ openstack security group rule list d0136b0e-ee51-461c-afa0-c5adb88dd0dd
>>>
>>> +--------------------------------------+-------------+----------+------------+--------------------------------------+
>>> | ID                                   | IP Protocol | IP Range | Port
>>> Range | Remote Security Group                |
>>>
>>> +--------------------------------------+-------------+----------+------------+--------------------------------------+
>>> | 38394345-3e44-4284-a519-cdd8af020f30 | tcp         | ::/0     | 22:22
>>>      | None                                 |
>>> | 40881f76-c87f-4685-b3af-c3497dd44837 | None        | None     |
>>>      | d0136b0e-ee51-461c-afa0-c5adb88dd0dd |
>>> | 56d4ae52-195e-48df-871e-dc70b899b7ba | None        | None     |
>>>      | d0136b0e-ee51-461c-afa0-c5adb88dd0dd |
>>> | 759edd06-b698-45ca-94cd-44e0cc2cc848 | ipv6-icmp   | None     |
>>>      | None                                 |
>>> | 762effae-b8e5-42ac-ba99-e85a7bc42455 | tcp         | ::/0     | 22:22
>>>      | None                                 |
>>> | 81f3588d-4159-4af2-ad50-ff6b76add9cf | ipv6-icmp   | None     |
>>>      | None                                 |
>>>
>>> +--------------------------------------+-------------+----------+------------+--------------------------------------+
>>>
>>> $ openstack security group rule show
>>> 759edd06-b698-45ca-94cd-44e0cc2cc848
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>> | Field             | Value
>>>
>>>                                                               |
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>> | created_at        | 2019-09-03T16:51:41Z
>>>
>>>                                                              |
>>> | description       |
>>>
>>>                                                               |
>>> | direction         | egress
>>>
>>>                                                              |
>>> | ether_type        | IPv6
>>>
>>>                                                              |
>>> | id                | 759edd06-b698-45ca-94cd-44e0cc2cc848
>>>
>>>                                                              |
>>> | location          | Munch({'project': Munch({'domain_id': 'default',
>>> 'id': u'68e3942285a24fb5bd1aed30e166aaee', 'name': 'admin', 'domain_name':
>>> None}), 'cloud': '', 'region_name': 'RegionOne', 'zone': None}) |
>>> | name              | None
>>>
>>>                                                              |
>>> | port_range_max    | None
>>>
>>>                                                              |
>>> | port_range_min    | None
>>>
>>>                                                              |
>>> | project_id        | 68e3942285a24fb5bd1aed30e166aaee
>>>
>>>                                                              |
>>> | protocol          | ipv6-icmp
>>>
>>>                                                               |
>>> | remote_group_id   | None
>>>
>>>                                                              |
>>> | remote_ip_prefix  | None
>>>
>>>                                                              |
>>> | revision_number   | 0
>>>
>>>                                                               |
>>> | security_group_id | d0136b0e-ee51-461c-afa0-c5adb88dd0dd
>>>
>>>                                                              |
>>> | tags              | []
>>>
>>>                                                              |
>>> | updated_at        | 2019-09-03T16:51:41Z
>>>
>>>                                                              |
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>>
>>> $ openstack security group rule show 81f3588d-4159-4af2-ad50-ff6b76add9cf
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>> | Field             | Value
>>>
>>>                                                               |
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>> | created_at        | 2019-09-03T16:51:30Z
>>>
>>>                                                              |
>>> | description       |
>>>
>>>                                                               |
>>> | direction         | ingress
>>>
>>>                                                               |
>>> | ether_type        | IPv6
>>>
>>>                                                              |
>>> | id                | 81f3588d-4159-4af2-ad50-ff6b76add9cf
>>>
>>>                                                              |
>>> | location          | Munch({'project': Munch({'domain_id': 'default',
>>> 'id': u'68e3942285a24fb5bd1aed30e166aaee', 'name': 'admin', 'domain_name':
>>> None}), 'cloud': '', 'region_name': 'RegionOne', 'zone': None}) |
>>> | name              | None
>>>
>>>                                                              |
>>> | port_range_max    | None
>>>
>>>                                                              |
>>> | port_range_min    | None
>>>
>>>                                                              |
>>> | project_id        | 68e3942285a24fb5bd1aed30e166aaee
>>>
>>>                                                              |
>>> | protocol          | ipv6-icmp
>>>
>>>                                                               |
>>> | remote_group_id   | None
>>>
>>>                                                              |
>>> | remote_ip_prefix  | None
>>>
>>>                                                              |
>>> | revision_number   | 0
>>>
>>>                                                               |
>>> | security_group_id | d0136b0e-ee51-461c-afa0-c5adb88dd0dd
>>>
>>>                                                              |
>>> | tags              | []
>>>
>>>                                                              |
>>> | updated_at        | 2019-09-03T16:51:30Z
>>>
>>>                                                              |
>>>
>>> +-------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>>
>>>
>>> On Fri, Sep 13, 2019 at 10:16 AM Donny Davis <donny at fortnebula.com>
>>> wrote:
>>>
>>>> Security group rules?
>>>>
>>>> Donny Davis
>>>> c: 805 814 6800
>>>>
>>>> On Thu, Sep 12, 2019, 5:53 PM Lucio Seki <lucioseki at gmail.com> wrote:
>>>>
>>>>> Hi folks, I'm having troubles to ping6 a VM running over DevStack from
>>>>> its hypervisor.
>>>>> Could you please help me troubleshooting it?
>>>>>
>>>>> I deployed DevStack with NEUTRON_CREATE_INITIAL_NETWORKS=False,
>>>>> and manually created the networks, subnets and router. Following is my
>>>>> router:
>>>>>
>>>>> $ openstack router show router1 -c external_gateway_info -c
>>>>> interfaces_info
>>>>>
>>>>> +-----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>>>> | Field                 | Value
>>>>>
>>>>>
>>>>>                                                                          |
>>>>>
>>>>> +-----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>>>> | external_gateway_info | {"network_id":
>>>>> "b87048ed-1be9-4f31-8d7e-fe74921aeec4", "enable_snat": true,
>>>>> "external_fixed_ips": [{"subnet_id":
>>>>> "28a00bc3-b30b-456f-b26a-44b50d37183f", "ip_address": "10.2.0.199"},
>>>>> {"subnet_id": "a9729beb-b297-4fec-8ec3-7703f7f6f4bc", "ip_address":
>>>>> "fd12:67:1::3c"}]} |
>>>>> | interfaces_info       | [{"subnet_id":
>>>>> "081e8508-4ceb-4aaf-bf91-36a1e22a768c", "ip_address": "fd12:67:1:1::1",
>>>>> "port_id": "75391abd-8ac8-41f8-acf8-3dfaf2a6b08f"}]
>>>>>
>>>>>                               |
>>>>>
>>>>> +-----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>>>>
>>>>> I'm trying to ping6 the following VM:
>>>>>
>>>>> $ openstack server list
>>>>>
>>>>> +--------------------------------------+---------+--------+------------------------------------------+--------+--------+
>>>>> | ID                                   | Name    | Status | Networks
>>>>>                               | Image  | Flavor |
>>>>>
>>>>> +--------------------------------------+---------+--------+------------------------------------------+--------+--------+
>>>>> | 938854d0-80e9-45b2-bc29-8fe7651ffa93 | manila1 | ACTIVE |
>>>>> private1=fd12:67:1:1:f816:3eff:fe0e:17c3 | manila | manila |
>>>>>
>>>>> +--------------------------------------+---------+--------+------------------------------------------+--------+--------+
>>>>>
>>>>> I intend to reach it via br-ex interface of the hypervisor:
>>>>>
>>>>> $ ip a show dev br-ex
>>>>> 9: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
>>>>> state UNKNOWN group default qlen 1000
>>>>>     link/ether 0e:82:a1:ba:77:4c brd ff:ff:ff:ff:ff:ff
>>>>>     inet6 fd12:67:1::1/64 scope global
>>>>>        valid_lft forever preferred_lft forever
>>>>>     inet6 fe80::c82:a1ff:feba:774c/64 scope link
>>>>>        valid_lft forever preferred_lft forever
>>>>>
>>>>> The hypervisor has the following routes:
>>>>>
>>>>> $ ip -6 route
>>>>> fd12:67:1:1::/64 via fd12:67:1::3c dev br-ex metric 1024 pref medium
>>>>> fe80::/64 dev ens3 proto kernel metric 256 pref medium
>>>>> fe80::/64 dev br-ex proto kernel metric 256 pref medium
>>>>> fe80::/64 dev br-int proto kernel metric 256 pref medium
>>>>> fe80::/64 dev tapa5cf4799-9f proto kernel metric 256 pref medium
>>>>>
>>>>> And within the VM has the following routes:
>>>>>
>>>>> root at ubuntu:~# ip -6 route
>>>>> root at ubuntu:~# ip -6 route
>>>>> fd12:67:1::/64 via fd12:67:1:1::1 dev ens3 metric 1024 pref medium
>>>>> fd12:67:1:1::/64 dev ens3 proto kernel metric 256 expires 86360sec
>>>>> pref medium
>>>>> fe80::/64 dev ens3 proto kernel metric 256 pref medium
>>>>> default via fe80::f816:3eff:feb3:bd56 dev ens3 proto ra metric 1024
>>>>> expires 260sec hoplimit 64 pref medium
>>>>>
>>>>> Though the ping6 from VM to hypervisor doesn't work:
>>>>> root at ubuntu:~# ping6 fd12:67:1::1 -c4
>>>>> PING fd12:67:1::1 (fd12:67:1::1): 56 data bytes
>>>>> --- fd12:67:1::1 ping statistics ---
>>>>> 4 packets transmitted, 0 packets received, 100% packet loss
>>>>>
>>>>> I'm able to tcpdump inside the router1 netns and see that request
>>>>> packet is passing there, but can't see any reply packets:
>>>>>
>>>>> $ sudo ip netns exec qrouter-5172472c-bbe7-4907-832a-e2239c8badb4
>>>>> tcpdump -l -i any icmp6
>>>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>>>>> decode
>>>>> listening on any, link-type LINUX_SLL (Linux cooked), capture size
>>>>> 262144 bytes
>>>>> 21:29:29.351358 IP6 fd12:67:1:1:f816:3eff:fe0e:17c3 > fd12:67:1::1:
>>>>> ICMP6, echo request, seq 0, length 64
>>>>> 21:29:30.033316 IP6 fe80::f816:3eff:feb3:bd56 >
>>>>> fe80::f816:3eff:fe0e:17c3: ICMP6, neighbor solicitation, who has
>>>>> fe80::f816:3eff:fe0e:17c3, length 32
>>>>> 21:29:30.035807 IP6 fe80::f816:3eff:fe0e:17c3 >
>>>>> fe80::f816:3eff:feb3:bd56: ICMP6, neighbor advertisement, tgt is
>>>>> fe80::f816:3eff:fe0e:17c3, length 24
>>>>> 21:29:30.353646 IP6 fd12:67:1:1:f816:3eff:fe0e:17c3 > fd12:67:1::1:
>>>>> ICMP6, echo request, seq 1, length 64
>>>>> 21:29:31.355410 IP6 fd12:67:1:1:f816:3eff:fe0e:17c3 > fd12:67:1::1:
>>>>> ICMP6, echo request, seq 2, length 64
>>>>> 21:29:32.357239 IP6 fd12:67:1:1:f816:3eff:fe0e:17c3 > fd12:67:1::1:
>>>>> ICMP6, echo request, seq 3, length 64
>>>>>
>>>>> The same happens from hypervisor to VM. I only acan see the request
>>>>> packets, but no reply packets.
>>>>>
>>>>> Thanks in advance,
>>>>> Lucio Seki
>>>>>
>>>>
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