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Message #90645
[Bug 1998952] [NEW] The static route removes the local route from qrouter-namespace
Public bug reported:
The static route removes the local route from qrouter-namespace routing
table.
I created two networks with subnet:
First:
#openstack network create Network-1 -f value -c id
784615c9-f9c4-4f4e-87d8-7e5dc76fde5e
#openstack subnet create sub-v4 --network 784615c9-f9c4-4f4e-87d8-7e5dc76fde5e --subnet-range 192.168.0.0/24 -f value -c id
0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b
Second:
#openstack network create Network-2 -f value -c id
041011cc-e254-4326-afa7-9951686610fc
#openstack subnet create sub-v4 --network 041011cc-e254-4326-afa7-9951686610fc --subnet-range 172.16.0.0/24 -f value -c id
3a500e8f-9ef8-48de-a148-623d7fa8e580
Create router:
openstack router create Router-Openstack -f value -c id
3d9e5161-0c19-4bcd-abb8-9350bfcefb56
Added subnet to router:
#openstack router add subnet 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b
#openstack router add subnet 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 3a500e8f-9ef8-48de-a148-623d7fa8e580
I now have a router with two interfaces.
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | AZ1, AZ2, AZ3 |
| created_at | 2022-12-06T16:35:59Z |
| description | |
| external_gateway_info | null |
| flavor_id | None |
| id | 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 |
| interfaces_info | [{"port_id": "10db0b0e-7f54-4927-b9ad-4a69515e069c", "ip_address": "192.168.0.1", "subnet_id": "0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b"}, {"port_id": "99dc5f15-1569-46f3-9d4f-4b907d7ae8fe", "ip_address": "172.16.0.1", "subnet_id": "3a500e8f-9ef8-48de-a148-623d7fa8e580"}] |
| location | Munch({'cloud': '', 'region_name': 'PL', 'zone': None, 'project': Munch({'id': 'afdfb965515f4724a21b6823764asdfg', 'name': 'myproject', 'domain_id': 'default', 'domain_name': None})}) |
| name | Router-Openstack |
| project_id | afdfb965515f4724a21b6823764asdfg |
| revision_number | 8 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2022-12-06T16:37:58Z |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Routing table from qrouter:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 dev qr-10db0b0e-7f proto kernel scope link src 192.168.0.1
I added new static route.
#openstack router set 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 --route
destination=192.168.0.0/24,gateway=172.16.0.10
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 -c routes
+--------+-----------------------------------------------------+
| Field | Value |
+--------+-----------------------------------------------------+
| routes | destination='192.168.0.0/24', gateway='172.16.0.10' |
+--------+-----------------------------------------------------+
Routing table from qrouter:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 proto 112 <----- my static route
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 <----- my static route 2x? why 2x?
In this moment I removed wrong route:
#openstack router remove route 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 --route destination=192.168.0.0/24,gateway=172.16.0.10
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | AZ1, AZ2, AZ3 |
| created_at | 2022-12-06T16:35:59Z |
| description | |
| distributed | False |
| external_gateway_info | null |
| flavor_id | None |
| ha | True |
| id | 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 |
| location | Munch({'cloud': '', 'region_name': 'PL', 'zone': None, 'project': Munch({'id': 'afdfb965515f4724a21b6823764asdfg', 'name': 'myproject', 'domain_id': 'default', 'domain_name': None})}) |
| name | Router-Openstack |
| project_id | afdfb965515f4724a21b6823764asdfg |
| revision_number | 10 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2022-12-06T16:47:58Z |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Routing table after removing the static route:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 <--------------- the route is still present
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 -c routes
+--------+-------+
| Field | Value |
+--------+-------+
| routes | |
+--------+-------+
Why is it still showing the wrong entry in the routing table and the local route is missing?
I believe that after deleting the route, the routing entry should look like below:
192.168.0.0/24 dev qr-10db0b0e-7f proto kernel scope link src 192.168.0.1
Does anyone know how to solve this problem?
My software version:
neutron-01:~# dpkg -l | grep neutron | grep ii
ii neutron-bgp-dragent 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - Agent
ii neutron-common 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - common
ii neutron-dhcp-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - DHCP agent
ii neutron-dynamic-routing-common 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - common files
ii neutron-fwaas-common 1:16.0.0-0ubuntu0.20.04.1 all Firewall-as-a-Service driver for OpenStack Neutron
ii neutron-l3-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - l3 agent
ii neutron-linuxbridge-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - linuxbridge agent
ii neutron-metadata-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - metadata agent
ii neutron-plugin-ml2 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - ML2 plugin
ii neutron-server 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - server
ii neutron-vpnaas-common 2:16.0.0-0ubuntu0.20.04.1 all VPN-as-a-Service driver for OpenStack Neutron
ii python3-neutron 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - Python library
ii python3-neutron-dynamic-routing 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - Python 3 library
ii python3-neutron-fwaas 1:16.0.0-0ubuntu0.20.04.1 all Firewall-as-a-Service driver for OpenStack Neutron
ii python3-neutron-lib 2.3.0-0ubuntu1 all Neutron shared routines and utilities - Python 3.x
ii python3-neutron-vpnaas 2:16.0.0-0ubuntu0.20.04.1 all VPN-as-a-Service driver for OpenStack Neutron
ii python3-neutronclient 1:7.1.1-0ubuntu1 all client API library for Neutron - Python 3.x
neutron-01:~# uname -a
Linux neutron-01 5.4.0-122-generic #138-Ubuntu SMP Wed Jun 22 15:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
neutron-01:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1998952
Title:
The static route removes the local route from qrouter-namespace
Status in neutron:
New
Bug description:
The static route removes the local route from qrouter-namespace
routing table.
I created two networks with subnet:
First:
#openstack network create Network-1 -f value -c id
784615c9-f9c4-4f4e-87d8-7e5dc76fde5e
#openstack subnet create sub-v4 --network 784615c9-f9c4-4f4e-87d8-7e5dc76fde5e --subnet-range 192.168.0.0/24 -f value -c id
0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b
Second:
#openstack network create Network-2 -f value -c id
041011cc-e254-4326-afa7-9951686610fc
#openstack subnet create sub-v4 --network 041011cc-e254-4326-afa7-9951686610fc --subnet-range 172.16.0.0/24 -f value -c id
3a500e8f-9ef8-48de-a148-623d7fa8e580
Create router:
openstack router create Router-Openstack -f value -c id
3d9e5161-0c19-4bcd-abb8-9350bfcefb56
Added subnet to router:
#openstack router add subnet 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b
#openstack router add subnet 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 3a500e8f-9ef8-48de-a148-623d7fa8e580
I now have a router with two interfaces.
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | AZ1, AZ2, AZ3 |
| created_at | 2022-12-06T16:35:59Z |
| description | |
| external_gateway_info | null |
| flavor_id | None |
| id | 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 |
| interfaces_info | [{"port_id": "10db0b0e-7f54-4927-b9ad-4a69515e069c", "ip_address": "192.168.0.1", "subnet_id": "0f1f9cfd-0956-46bd-9bcc-c6eca6fa522b"}, {"port_id": "99dc5f15-1569-46f3-9d4f-4b907d7ae8fe", "ip_address": "172.16.0.1", "subnet_id": "3a500e8f-9ef8-48de-a148-623d7fa8e580"}] |
| location | Munch({'cloud': '', 'region_name': 'PL', 'zone': None, 'project': Munch({'id': 'afdfb965515f4724a21b6823764asdfg', 'name': 'myproject', 'domain_id': 'default', 'domain_name': None})}) |
| name | Router-Openstack |
| project_id | afdfb965515f4724a21b6823764asdfg |
| revision_number | 8 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2022-12-06T16:37:58Z |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Routing table from qrouter:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 dev qr-10db0b0e-7f proto kernel scope link src 192.168.0.1
I added new static route.
#openstack router set 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 --route
destination=192.168.0.0/24,gateway=172.16.0.10
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 -c routes
+--------+-----------------------------------------------------+
| Field | Value |
+--------+-----------------------------------------------------+
| routes | destination='192.168.0.0/24', gateway='172.16.0.10' |
+--------+-----------------------------------------------------+
Routing table from qrouter:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 proto 112 <----- my static route
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 <----- my static route 2x? why 2x?
In this moment I removed wrong route:
#openstack router remove route 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 --route destination=192.168.0.0/24,gateway=172.16.0.10
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP |
| availability_zone_hints | |
| availability_zones | AZ1, AZ2, AZ3 |
| created_at | 2022-12-06T16:35:59Z |
| description | |
| distributed | False |
| external_gateway_info | null |
| flavor_id | None |
| ha | True |
| id | 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 |
| location | Munch({'cloud': '', 'region_name': 'PL', 'zone': None, 'project': Munch({'id': 'afdfb965515f4724a21b6823764asdfg', 'name': 'myproject', 'domain_id': 'default', 'domain_name': None})}) |
| name | Router-Openstack |
| project_id | afdfb965515f4724a21b6823764asdfg |
| revision_number | 10 |
| routes | |
| status | ACTIVE |
| tags | |
| updated_at | 2022-12-06T16:47:58Z |
+-------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Routing table after removing the static route:
neutron-01:~# ip netns exec qrouter-3d9e5161-0c19-4bcd-abb8-9350bfcefb56 ip route
169.254.0.0/24 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.0.82
169.254.192.0/18 dev ha-c5a65a6e-92 proto kernel scope link src 169.254.193.48
172.16.0.0/24 dev qr-99dc5f15-15 proto kernel scope link src 172.16.0.1
192.168.0.0/24 via 172.16.0.10 dev qr-99dc5f15-15 <--------------- the route is still present
#openstack router show 3d9e5161-0c19-4bcd-abb8-9350bfcefb56 -c routes
+--------+-------+
| Field | Value |
+--------+-------+
| routes | |
+--------+-------+
Why is it still showing the wrong entry in the routing table and the local route is missing?
I believe that after deleting the route, the routing entry should look like below:
192.168.0.0/24 dev qr-10db0b0e-7f proto kernel scope link src 192.168.0.1
Does anyone know how to solve this problem?
My software version:
neutron-01:~# dpkg -l | grep neutron | grep ii
ii neutron-bgp-dragent 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - Agent
ii neutron-common 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - common
ii neutron-dhcp-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - DHCP agent
ii neutron-dynamic-routing-common 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - common files
ii neutron-fwaas-common 1:16.0.0-0ubuntu0.20.04.1 all Firewall-as-a-Service driver for OpenStack Neutron
ii neutron-l3-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - l3 agent
ii neutron-linuxbridge-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - linuxbridge agent
ii neutron-metadata-agent 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - metadata agent
ii neutron-plugin-ml2 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - ML2 plugin
ii neutron-server 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - server
ii neutron-vpnaas-common 2:16.0.0-0ubuntu0.20.04.1 all VPN-as-a-Service driver for OpenStack Neutron
ii python3-neutron 2:16.4.2-0ubuntu2 all Neutron is a virtual network service for Openstack - Python library
ii python3-neutron-dynamic-routing 2:16.0.0-0ubuntu0.20.04.1 all OpenStack Neutron Dynamic Routing - Python 3 library
ii python3-neutron-fwaas 1:16.0.0-0ubuntu0.20.04.1 all Firewall-as-a-Service driver for OpenStack Neutron
ii python3-neutron-lib 2.3.0-0ubuntu1 all Neutron shared routines and utilities - Python 3.x
ii python3-neutron-vpnaas 2:16.0.0-0ubuntu0.20.04.1 all VPN-as-a-Service driver for OpenStack Neutron
ii python3-neutronclient 1:7.1.1-0ubuntu1 all client API library for Neutron - Python 3.x
neutron-01:~# uname -a
Linux neutron-01 5.4.0-122-generic #138-Ubuntu SMP Wed Jun 22 15:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
neutron-01:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal
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