It can’t be pinged: root@ neutron:~# ip netns exec qrouter-48cc6f75-b0a2-4468-a0bd-e6567237b7ee ping -I qg-34625a11-da 172.29.105.1 PING 172.29.105.1 (172.29.105.1) from 172.29.105.101 qg-34625a11-da: 56(84) bytes of data. From 172.29.105.101 icmp_seq=1 Destination Host Unreachable From 172.29.105.101 icmp_seq=2 Destination Host Unreachable From 172.29.105.101 icmp_seq=3 Destination Host Unreachable From 172.29.105.101 icmp_seq=4 Destination Host Unreachable From 172.29.105.101 icmp_seq=5 Destination Host Unreachable From 172.29.105.101 icmp_seq=6 Destination Host Unreachable From 172.29.105.101 icmp_seq=7 Destination Host Unreachable From 172.29.105.101 icmp_seq=8 Destination Host Unreachable From 172.29.105.101 icmp_seq=9 Destination Host Unreachable From 172.29.105.101 icmp_seq=10 Destination Host Unreachable From 172.29.105.101 icmp_seq=11 Destination Host Unreachable From 172.29.105.101 icmp_seq=12 Destination Host Unreachable From 172.29.105.101 icmp_seq=13 Destination Host Unreachable From 172.29.105.101 icmp_seq=14 Destination Host Unreachable
From: Remo Mattei [mailto:r...@italy1.com] Sent: Friday, February 27, 2015 11:08 PM To: Mitchell Chen Cc: openstack@lists.openstack.org Subject: Re: [Openstack] Can not ping the tenant router gateway from any nodes after all nodes shut down/turned on Sorry No No. that is the ip address of the virtual router. You need to ping the gateway using the router. So it should look like this ip netns exec qrouter-48cc6f75-b0a2-4468-a0bd-e6567237b7ee ping -I qg-34625a11-da 172.29.105.1 On Feb 27, 2015, at 22:57, Mitchell Chen <mitchell.c...@mediatek.com<mailto:mitchell.c...@mediatek.com>> wrote: Hi Remo, Thank you for looking at this issue. Yes, I can ping the gateway from the router. Please look the red in the following my previous mail. I followed the OpenStack installation guide, http://docs.openstack.org/icehouse/install-guide/install/apt/content/neutron_initial-tenant-network.html, to set up the network. More detail networks and router are in the following: Please let me know if you need any more information. Thanks, Mitchell root@control:/# neutron net-list +--------------------------------------+----------+------------------------------------------------------+ | id | name | subnets | +--------------------------------------+----------+------------------------------------------------------+ | 3ef88278-b944-4ba2-a39b-0c23a2f22385 | ext-net | 35501767-4b22-4ffc-9ed6-cdbe59759b9e 172.29.105.0/24 | | 6f4e6906-ec84-410f-bfc1-89e076791ddb | demo-net | 318125f7-3015-44cb-80fe-f8682a997392 192.168.2.0/24 | +--------------------------------------+----------+------------------------------------------------------+ root@ control:/ # neutron subnet-list +--------------------------------------+-------------+-----------------+------------------------------------------------------+ | id | name | cidr | allocation_pools | +--------------------------------------+-------------+-----------------+------------------------------------------------------+ | 318125f7-3015-44cb-80fe-f8682a997392 | demo-subnet | 192.168.2.0/24 | {"start": "192.168.2.2", "end": "192.168.2.254"} | | 35501767-4b22-4ffc-9ed6-cdbe59759b9e | ext-subnet | 172.29.105.0/24 | {"start": "172.29.105.101", "end": "172.29.105.127"} | +--------------------------------------+-------------+-----------------+------------------------------------------------------+ root@ control:/ # neutron router-list +--------------------------------------+-------------+-----------------------------------------------------------------------------+ | id | name | external_gateway_info | +--------------------------------------+-------------+-----------------------------------------------------------------------------+ | 48cc6f75-b0a2-4468-a0bd-e6567237b7ee | demo-router | {"network_id": "3ef88278-b944-4ba2-a39b-0c23a2f22385", "enable_snat": true} | +--------------------------------------+-------------+-----------------------------------------------------------------------------+ root@mussdhux23:/home/stack/Openstack-mtk# neutron router-show 48cc6f75-b0a2-4468-a0bd-e6567237b7ee +-----------------------+-----------------------------------------------------------------------------+ | Field | Value | +-----------------------+-----------------------------------------------------------------------------+ | admin_state_up | True | | external_gateway_info | {"network_id": "3ef88278-b944-4ba2-a39b-0c23a2f22385", "enable_snat": true} | | id | 48cc6f75-b0a2-4468-a0bd-e6567237b7ee | | name | demo-router | | routes | | | status | ACTIVE | | tenant_id | 1bc3de8b19384858a1a7a6395e1845e3 | +-----------------------+-----------------------------------------------------------------------------+ root@mussdhux23:/home/stack/Openstack-mtk# neutron router-port-list 48cc6f75-b0a2-4468-a0bd-e6567237b7ee +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------------+ | id | name | mac_address | fixed_ips | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------------+ | 34625a11-da44-4507-8aa8-6073b724816b | | fa:16:3e:d7:2f:27 | {"subnet_id": "35501767-4b22-4ffc-9ed6-cdbe59759b9e", "ip_address": "172.29.105.101"} | | 70c2c01f-8306-45df-958c-b445eb3523ee | | fa:16:3e:27:83:6c | {"subnet_id": "318125f7-3015-44cb-80fe-f8682a997392", "ip_address": "192.168.2.1"} | +--------------------------------------+------+-------------------+---------------------------------------------------------------------------------------+ From: Remo Mattei [mailto:r...@italy1.com] Sent: Friday, February 27, 2015 9:08 PM To: Mitchell Chen Cc: openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Subject: Re: [Openstack] Can not ping the tenant router gateway from any nodes after all nodes shut down/turned on that only shows you ping your interface can you ping your gateway from the router? How was the router created? Did you enable provider network? You show some data but not all. Remo On Feb 27, 2015, at 18:52, Mitchell Chen <mitchell.c...@mediatek.com<mailto:mitchell.c...@mediatek.com>> wrote: These is an issue that the tenant router gateway can not be pinned. Is this an OpenStack issue? It doesn’t allow all nodes to be powered off and on? Before the nodes were shut down, networking works great either from inside instances to access outside internet or from outside to access the instances. Please help: root@neutron:/# neutron subnet-list +--------------------------------------+-------------+-----------------+------------------------------------------------------+ | id | name | cidr | allocation_pools | +--------------------------------------+-------------+-----------------+------------------------------------------------------+ | 318125f7-3015-44cb-80fe-f8682a997392 | demo-subnet | 192.168.2.0/24 | {"start": "192.168.2.2", "end": "192.168.2.254"} | | 35501767-4b22-4ffc-9ed6-cdbe59759b9e | ext-subnet | 172.29.105.0/24 | {"start": "172.29.105.101", "end": "172.29.105.127"} | +--------------------------------------+-------------+-----------------+------------------------------------------------------+ root@ neutron:/# neutron subnet-show 35501767-4b22-4ffc-9ed6-cdbe59759b9e +------------------+------------------------------------------------------+ | Field | Value | +------------------+------------------------------------------------------+ | allocation_pools | {"start": "172.29.105.101", "end": "172.29.105.127"} | | cidr | 172.29.105.0/24 | | dns_nameservers | | | enable_dhcp | False | | gateway_ip | 172.29.105.254 | | host_routes | | | id | 35501767-4b22-4ffc-9ed6-cdbe59759b9e | | ip_version | 4 | | name | ext-subnet | | network_id | 3ef88278-b944-4ba2-a39b-0c23a2f22385 | | tenant_id | 7479d4eabeb14b45a7f38269155ec0f5 | root@ neutron:/# ip netns qdhcp-6f4e6906-ec84-410f-bfc1-89e076791ddb qrouter-48cc6f75-b0a2-4468-a0bd-e6567237b7ee root@ neutron:/# ip netns exec qrouter-48cc6f75-b0a2-4468-a0bd-e6567237b7ee ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 35: qr-70c2c01f-83: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default link/ether fa:16:3e:27:83:6c brd ff:ff:ff:ff:ff:ff inet 192.168.2.1/24 brd 192.168.2.255 scope global qr-70c2c01f-83 valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fe27:836c/64 scope link valid_lft forever preferred_lft forever 36:qg-34625a11-da: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default link/ether fa:16:3e:d7:2f:27 brd ff:ff:ff:ff:ff:ff inet 172.29.105.101/24 brd 172.29.105.255 scope global qg-34625a11-da valid_lft forever preferred_lft forever inet6 fe80::f816:3eff:fed7:2f27/64 scope link valid_lft forever preferred_lft forever // From the qrouter, the gateway can be pinned root@ neutron:/# ip netns exec qrouter-48cc6f75-b0a2-4468-a0bd-e6567237b7ee ping -c 4 172.29.105.101 PING 172.29.105.101 (172.29.105.101) 56(84) bytes of data. 64 bytes from 172.29.105.101: icmp_seq=1 ttl=64 time=0.063 ms 64 bytes from 172.29.105.101: icmp_seq=2 ttl=64 time=0.060 ms 64 bytes from 172.29.105.101: icmp_seq=3 ttl=64 time=0.059 ms 64 bytes from 172.29.105.101: icmp_seq=4 ttl=64 time=0.058 ms //// Can not be pinned here: root@ neutron:/# ping -c 4 172.29.105.101 PING 172.29.105.101 (172.29.105.101) 56(84) bytes of data. --- 172.29.105.101 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3023ms root@ neutron:/home/stack/Openstack# neutron agent-list +--------------------------------------+--------------------+------------+-------+----------------+ | id | agent_type | host | alive | admin_state_up | +--------------------------------------+--------------------+------------+-------+----------------+ | 68eba267-b885-4aad-96a4-e8d19ac9db4a | L3 agent | mussdhux20 | :-) | True | | c0726b66-a1f4-4b00-9120-7bf0ee91a3d0 | DHCP agent | mussdhux20 | :-) | True | | d8808f97-90f8-424d-a786-45b4541af755 | Open vSwitch agent | mussdhux04 | :-) | True | | e8d85451-3f6f-4b2a-94a1-6dd3e9a93cff | Metadata agent | mussdhux20 | :-) | True | | f4e51873-7e18-49a4-ab6b-94c24500e25f | Open vSwitch agent | mussdhux13 | :-) | True | | f8cab47d-a0db-4de2-b457-23c4e87ccb32 | Open vSwitch agent | mussdhux10 | :-) | True | | fd9ab1c9-ce62-4504-8d68-215584a70a17 | Open vSwitch agent | mussdhux20 | :-) | True | +--------------------------------------+--------------------+------------+-------+----------------+ I also restarted the neutron services after my neutron node booted up. service neutron-plugin-openvswitch-agent restart service neutron-l3-agent restart service neutron-dhcp-agent restart service neutron-metadata-agent restart Anyone has solutions for this kind of issue? Thank you so much for the help, Mitchell From: Mark Loza [mailto:ml...@morphlabs.com] Sent: Friday, February 27, 2015 3:59 AM To: Mitchell Chen; openstack@lists.openstack.org<mailto:openstack@lists.openstack.org> Subject: Re: [Openstack] Instance can not ping each other I assume you are using neutron instead of nova-network On 2/27/15 7:57 PM, Mark Loza wrote: Hi, Did you check if the neutron agents are all alive? # neutron agent-list On 2/27/15 3:49 PM, Mitchell Chen wrote: Hi All, I followed the OpenStack icehouse installation guide to successfully install a five node system, one control node, one neutron and three compute nodes. Inside of the instance, I can ping other instances’ virtual IP address and outside internet fine. Recently, we decided to move all the nodes to a lab. So, I powered down the five nodes before the move and powered up them afterward. All the physical network connections were exactly the same as they were before the move. But, I can not even ping other instance after the five nodes up again. I typed “route –n” inside of the instance, no any IP is shown. What’s wrong? Please help how I can get the instance networking back. Thanks, Mitchell ************* Email Confidentiality Notice ******************** The information contained in this e-mail message (including any attachments) may be confidential, proprietary, privileged, or otherwise exempt from disclosure under applicable laws. It is intended to be conveyed only to the designated recipient(s). Any use, dissemination, distribution, printing, retaining or copying of this e-mail (including its attachments) by unintended recipient(s) is strictly prohibited and may be unlawful. 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