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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).

Neutron mission is to implement services and associated libraries to provide on-demand, scalable, and technology-agnostic network abstraction. Like Nova Networking, Neutron manages software-defined networking for your OpenStack installation. However, unlike Nova Networking, you can configure Neutron for advanced virtual network topologies, such as per-tenant private networks and more.

Starting in the Folsom release, Neutron is a core and supported part of the OpenStack platform. It was previously known as 'Quantum'.

References

  1. Official OpenStack Neutron Wiki
  2. Lanchpad Neutron page
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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. The compute node has nested virtualization enabled…
geo_pap
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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 192.168.102.0/24 subnet. The host network is actually a…
Elf
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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 project. That works fine. What I expected is that…
Joachim
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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 feature not yet supported?
Vishwa Mithra Tatta
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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 which copies on tenant creation time. Is it possible?
Vahid Alimohamadi
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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 and routing via invalid ip for preventing ip…
Vahid Alimohamadi
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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 simply by assigning a floating ip. However this fails…
thurlimann
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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 dead-end. I've deployed both OpenStack Victoria and…
AliveDevil
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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 (No connection to the net). I have bought more IPs…
Vishwa Mithra
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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 Machines on the subnet that the external router is…
thurlimann
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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 (VM's) processing. Are there any possible causes…
schap
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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't work. Ive made a tcpdump on the destination,…
Vinicius Coelho
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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-API ,etc) and nova controlling services like Nova-api…
user393397
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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 The routers external gateway is 10.10.1.4 which I…
schap
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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 machine: Management Interface enp2s0:…
Jaime Saez
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