[neutron] DevStack with IPv6
Donny Davis
donny at fortnebula.com
Fri Sep 13 17:22:17 UTC 2019
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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