Questions tagged [openstack-neutron]

Neutron is a virtual network service for Openstack. It is an OpenStack project to provide "networking as a service" between interface devices (e.g., vNICs) managed by other Openstack services (e.g., nova).

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Openstack instance is unreachable

I am facing the following issue with my new Openstack installation. The installation is a little bit weird and to elaborate more, I have a controller and a compute node running as VMs in XenServer. ...
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Openstack traffic flow is not showing on patch-tun or patch-int

I´m analyzing OpenStack traffic flow between instances, to understand how the traffic goes from one place to another. I have a provider network with openvswitch configuration. My scenario is depicted ...
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Openstack security group targeting another security group not working as expected

I wonder if anyone might be able to see why chaining security groups isn't working please? I have a VM with security group test_1 applied to its only NIC port. Default security group has egress rules ...
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Charmed Openstack linux bridge instead of OVS bridge

I did install the charmed openstack reading the documentation provided at docs.openstack.org. However, i made a mistake, configured the bridges as linux bridge instead of OVS bridge on MAAS to compute ...
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Removal of default routes with multiple subnets under Openstack Provider Network

I have a self-service network with a single external connection via the 192.168.100.0/24 subnet. It also has multiple subnets under this external connection via the 192.168.101.0/24 and 192.168.102.0/...
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Same openstack subnet shared by multiple network (vlan)

In the ussuri version and higher. Is it possible to have a subnet shared by several networks? Or Is it possible to externalize the DHCP service? I explain it to you. On the openstack side, I want to ...
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VPN Between OpenStack and AWS VPC

I have an OpenStack server with Vms. I have a number of instances in AWS. The VMs in both cases need to see each other. I could setup Tinc or OpenVPN on VMs but this seems prone to failure. I've ...
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VPN IPsec site connection sporadically lost data between Openstack VPN and a Checkpoint firewall

We have established an IPsec VPN site connection from our Openstack to a Check Point firewall device. The tunnel is UP but sporadically the connection has "breaks". We already checked ...
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Openstack Victoria : Instance failed to create virtual interface

I installed the proof of concept architecture from the install guide with option 2 selfservice network. Everything went well, the last step before creating instance was ok :I can ping the router from ...
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Openstack : Is it possible to have instances using provider (option 1) and selfservice network (option 2) at the same time?

Here is my beginner's question : If I configure SelfService Network (option 2), it means that I configured before a provider network. Thus, in operation, can I have at the same time, instances using ...
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Attaching new network after instance creation causes DOWN network device status

When creating a new instance, the attached network interfaces work normally as checked by logging into the instance and using ip addr. The IP addresses set to the network devices are the expected ...
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How to assure that floating IP is taken as source address for egress traffic of VM

If I have a OpenStack VM which has a configured a floating IP address and tries to connect to a service outside the OpenStack "universe". How do I assure, that the source IP address of this ...
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Should associated floating IPs be configured/visible on VM?

perhaps anybody here inside can assist me with a problem (or question) with floating IPs. I am creating a floating IP by allocating one from a defined pool and associate it to a running VM within my ...
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OVN Cluster Health Command

Is there any command-line tool for the OVN Cluster Health check? Or each of its components? and a command or commands which gives stats about the cluster. For example, without a functional test, I ...
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Is there a way to access my OpenStack instance without floating IP?

It seems theoretically possible for me to ssh to my instance in OpenStack through credentials and instance id/network IP(Not floating IP) etc. Is it possible, am I missing something? Is it simply a ...
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ipv6 issue after upgrade to victoria/ubuntu 20.04

i'm in charge of a small r&d cluster that is currently running with 1 mixed control/infra/compute node(formerly "all in one" stack), 1 storage node and 1 compute node. The cluster was ...
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OpenStack set global security rules which assigning as "default" to tenant

I need to assign some rules to default security groups each time a tenant creating. I know how to assign rules to a default security group of a specific tenant. But i mean changing the global one ...
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What are the possible values of auth_strategy in a neutron.conf file?

I am trying to configure Neutron without auth_strategy or keystone service but as I am a beginner to Openstack Neutron can't find the possible values for the mentioned configuration key.
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How to configure openstack-neutron to add floating ips

I have an openstack deployment using kolla ansible. I am unable to configure neutron for floating IPs, Where do I start? I have a router which forwards say, 40 different public IPs onto a single high ...
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Can We Use Openstack Neutron as standalone component?

Scenario: We are trying to develop our Virtual Network using Open Virtual Network or OVN, We need our Virtual Network Switches running firstly on the root Virtual Router, and there are some other ...
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How i can assign /32 ip address to openstack nova instance without float ip?

I'm developing a custom panel for my openstack home lab via rest api. I've investigated Hetzner cloud ip (v4) addressing mechanism and i found it is like this: It is assigning /32 valid ip v4 address ...
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Openstack VM is not allowed to send packets with the floating ip as origin

I have the following problem, following up on my previous attempt to seek help. I have a VM that wants to communicate with other VMs that reside somewhere outside of OpenStack. I tried doing that ...
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OpenStack Wallaby Neutron unable to update Designate zone

So … I'm trying to get neutron to update designate zones. There initially wasn't any issue with OpenStack Victoria, but trying to update to (or install a fresh) OpenStack Wallaby turned this into a ...
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Openstack : Internet connection loss on the instance when openvswitch port updated

I use the Openstack Ocata and have the internet connection loss problem in the instance. I found the log of neutron-openvswitch-agent.log as below when the internet connection loss in the instance, ...
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How do I add floating IPs to my ansible Openstack deployment?

So, I successfully deployed openstack with two interfaces. One having an external IP (Which I use to connect to my openstack deployment) and another dummy interface with only an internal network IP (...
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Tunnel packets get filtered or stripped off, also certain packets like BGP

I was trying to figure this out for quite some while now. So I am trying my luck here now... I have some VMs that should communicate with non VMs. There are 2 use cases. The first are BareMetal ...
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OpenStack Slowness on Centos Stream

I just deployed a new cluster of Openstack Victoria using PackStack on Centos Stream, same hardware but for some reason this new cluster runs terribly slow, from the dashboard to the actual instances (...
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Snat not working

Im using centos 8.3 and Usurri. Made the installation following the official tutorial. Everything is working, except the SNAT. From a new instance, when I try to access any external address, it doesn'...
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Cannot create an instance due to failed binding

I'm deploying openstack on 3 nodes (controller, compute and block storage). Each of my nodes have 2 attachements eno1 on the management network and eno2 on a provider network (192.168.3.0/24). I'm ...
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containerized Openstack services

I have a difficulties in the following question: "Does it make sense to containerized/dockerize the openstack controlling services like Neurtron/Cinder/Glance/Keystone server services (neutron-...
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Openstack Instances cant communicate or ping the subnet the controller and compute is on

For some reason i am not able to ping from an instance to the subnet the controller and compute's are on. The network is pretty simple. VM's/Instances: 10.10.2.0/24 Controller/Compute's: 10.10.1.0/24 ...
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Openstack VPNaaS tunnel sharing option

I am currently configuring a VPN using the VPNaaS of neutron. We are setting an IPSec tunnel with an external partner. The communication is established, but he ask me what type of tunnel sharing we ...
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Openstack instance lost internet access after ataching floating ip

Maybe someone has same problem I have installed Openstack Victoria on two virtualmachines (1 controller node, 1 compute node) running ubuntu 20.04. Each node has two network interfaces, mgmt network ...
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Openstack SelfService network with IPV6 subnet from provider network

I am installing an openstack infrastructure but i have an issue with the selfservice networks and the ipv6 On my provider network i have the fddd:3138:5d15:18::/64 subnet which is my local server ...
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Openstack instances cannot access Internet [linuxbridge]

I am having serious issues in the deployment of the Openstack scenario related to the Linux Bridge. This is the scenario: Controller machine: Management Interface enp2s0: 138.100.10.25. Compute ...
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neutron-linuxbridge-agent is crashing in Openstack Ussuri

On our new Openstack Ussuri installation neutron-linuxbridge-agent crashes on both compute nodes. The installation followed the instructions for Ubuntu (20.04) at https://docs.openstack.org/install-...
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open vswitch and open virtual network in openstack

I have a local lab which does not have a physical switch and consists of 3 servers which are connected to each other Nics. Now I want to implement vlans, want to know is it possible to setup vlans ...
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OpenStack Neutron connecting instances to physical external networks?

So I recently tried to deploy a couple of instances and connect them to the external LAN that is also used by the compute nodes to talk to each other and the controller. I've opted for the flat ...
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Fail to load radvd.service - Router advertisement daemon for IPv6

I'm facing this issue while setting up the neutron, it leading the OpenStack router not working. Below is output from journalctl -xe. Subject: A start job for unit radvd.service has begun execution ...
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Openstack cannot access to the controller node from the other network

I've installed the Openstack without any issue. I'm facing the issue that cannot access the controller host from the other network. In my work environment, I have many VLAN configured on Cisco Switch. ...
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New compute node with openstack base bundle

In my scenario which is deployed with maas and juju, I have a network 10.10.10.0/24 which is used to deploy openstack base churm bundle. Also the maas and juju are within this network/subnet. Recently ...
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Neutron/DVR promiscuous mode for all instances by default

I have some troubles with OpenStack setup with Neutron/DVR networking. All interfaces promiscuous mode by default, and if some virtual machines in one network run in one hypervisor I see on all ...
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Tunneling cannot be enabled without the local_ip

I am trying to get an OS instance up&running on my local infrastructure (currently VirtualBox VMs only) using the official install-guides for Debian/Ubuntu as I am running on Debian 10 (Buster). ...
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Does the `ml2_conf.ini` configuration change required a re-population database in Openstack Ussuri?

Im new to Openstack administration. I have a up and running setup of Openstack Ussuri using 1 controller and 1 compute node in lab environment. By following CentOS related guide I have already setup'...
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Openstack VM build fails with error

I have installed OpenStack Victoria according to the official guide https://docs.openstack.org/install-guide/index.html But if I now start a VM into the public network it fails with an error. The log ...
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OpenStack instance failed to deploy with error "Failed to bind port"

I've recently been struggling to deploy and instances on our OpenStack environment. Whenever I try to deploy a new instance from horizon, I get the following error message: Error: Failed to perform ...
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Openstack: Are components related to a keystone::project auto garbage-collected upon project deletion?

Hello dear community, in the research of how to properly delete projects and their resources via the OpenStack API I was only able to find a hint in the official python sdk, the project_purge.py (...
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Neutron FWaaSv2 and Security Group Priority when firewall group applied to router port

I am hoping someone can give me some guidance on fwaasv2 and how it works with security groups when a firewall group is applied to a router port. My initial expectation was that when applied to a ...
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How to access internet from VM instance in Openstack?

I've been scratching my head for last 5 days, almost went to the end of Internet, read a lot of tutorials, made a lot of re installations an re configurations of openstack but at the and of the day ...
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openstack installation rally error

I've got a problem throught installation of openstack in a VM Centos7 the error is: [root@localhost ~(keystone_admin)]# rally deployment create --fromenv --name=existing Command failed, please ...
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