[neutron] DevStack with IPv6
Donny Davis
donny at fortnebula.com
Fri Sep 13 18:55:20 UTC 2019
So outbound traffic works, but inbound traffic doesn't?
Here is my icmp security group rule for ipv6.
+-------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| 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 2:48 PM Lucio Seki <lucioseki at gmail.com> wrote:
> 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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