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@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@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@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@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@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@fortnebula.com wrote:
Security group rules?
Donny Davis c: 805 814 6800
On Thu, Sep 12, 2019, 5:53 PM Lucio Seki lucioseki@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@ubuntu:~# ip -6 route root@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@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