[Yahoo-eng-team] [Bug 1745159] [NEW] macvtap agent: wrong vif details when instance is launched on vlan and flat network

2018-01-24 Thread Andreas Scheuring
Public bug reported: It's bug in the macvtap mechanism driver. If multiple network types are used with the macvtap driver, e.g. flat and vlan, the vif_details can contain an invalid vif_detail attribute 'vlan'. This leads to nova configuring the macvtap with a vlan, even though flat should be use

[Yahoo-eng-team] [Bug 1689623] [NEW] ds-identify: disable ec-strict for s390x in yaketty

2017-05-09 Thread Andreas Scheuring
Public bug reported: DS-identify runs with DI_EC2_STRICT_ID_DEFAULT="warn" on s390x using yakkety. With zesty EC2_STRICT is set to "true". Having it set to "true" is important, as on s390x the OpenStack datasource cannot be detected. Each ds-identify run results in ec2-maybe (if no other detectab

[Yahoo-eng-team] [Bug 1662542] [NEW] Rhel7 set_hostname not working due to cyclic dependency

2017-02-07 Thread Andreas Scheuring
Public bug reported: Using version 0.7.9 Cloud-init.service fails setting the hostname on a rhel7 with the error   ProcessExecutionError: Unexpected error while running command.   Command: ['hostnamectl', 'set-hostname', 'foo']   Exit code: 1   Reason: -   Stdout: -   Stderr: Failed to create bus

[Yahoo-eng-team] [Bug 1641837] Re: neutron-openvswitch-agent failed to add default table

2016-11-14 Thread Andreas Scheuring
Along yesterday Neutron meeting [1]: 21:05:22 when reviewing stable patches or triaging bug reports 21:05:34 please take into account of the fact that mitaka is security fixes only -> This is not a security issue IMO, so setting it to "won't fix". [1] http://eavesdrop.openstack.org/meetings

[Yahoo-eng-team] [Bug 1641433] Re: Deprecate SR-IOV 'physical_device_mappings' config option

2016-11-13 Thread Andreas Scheuring
** Also affects: openstack-manuals Importance: Undecided Status: New ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1641433

[Yahoo-eng-team] [Bug 1640835] Re: neutron doesn't report invalid values passed to it

2016-11-13 Thread Andreas Scheuring
Got your point. I'll close this bug as the issue seems to be fixed! Thanks for finding out! ** Changed in: neutron Status: Incomplete => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpa

[Yahoo-eng-team] [Bug 1640461] Re: docs: sql parameters missing in config reference

2016-11-10 Thread Andreas Scheuring
ah makes sense. Thanks! ** Changed in: openstack-manuals Status: Confirmed => Invalid ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net

[Yahoo-eng-team] [Bug 1640437] Re: FWAAS Firewall Groups API missing in API docs

2016-11-10 Thread Andreas Scheuring
Cool, thanks for the update! ** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1640437 Title: FWAAS Firewall Groups API missing i

[Yahoo-eng-team] [Bug 1640461] [NEW] docs: sql parameters missing in config reference

2016-11-09 Thread Andreas Scheuring
Public bug reported: The sample config file [1] shows varies sql alchemy config parameters like - max_pool_size - max_retries -... But those do not exist in the Neutron Config Reference [2] [1] http://docs.openstack.org/newton/config-reference/networking/samples/neutron.conf.html [2] http://d

[Yahoo-eng-team] [Bug 1640029] Re: [stable/newton] Deleting heat stack failed due to error "QueuePool limit of size 50 overflow 50 reached, connection timed out, timeout 30"

2016-11-09 Thread Andreas Scheuring
Hi Sujai, thanks for reporting this. The issue is not yet clear to me. Can you please provide: - max_pool_size, retry_interval, max_overflow settings of your first run - the nova error message of the first and the second run - the neutron error message of the first and second run At the moment yo

[Yahoo-eng-team] [Bug 1640437] Re: FWAAS Firewall Groups API missing in API docs

2016-11-09 Thread Andreas Scheuring
** Changed in: openstack-api-site Status: New => Invalid ** Changed in: neutron Status: New => Confirmed -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1640437 Title: FWAA

[Yahoo-eng-team] [Bug 1640437] [NEW] FWAAS Firewall Groups API missing in API docs

2016-11-09 Thread Andreas Scheuring
Public bug reported: The concept of Firewall Groups got introduced with [1]. The API doc does not mention this API at all. [2] [1] https://specs.openstack.org/openstack/neutron-specs/specs/mitaka/fwaas-api-2.0.html#firewall-groups [2] http://developer.openstack.org/api-ref/networking/v2/index.

[Yahoo-eng-team] [Bug 1640221] Re: Can't create floatingip with specified uuid

2016-11-09 Thread Andreas Scheuring
Hi Stefan, I would rather tackle the root causes that you described with "some error in a specific L3 service implementation". Can you elaborate more on that? Ideally you would directly open a bug for those issues providing the relevant information! I'll set this to invalid. I'm not aware of any N

[Yahoo-eng-team] [Bug 1531511] Re: Add devref documentation for live-migration

2016-10-19 Thread Andreas Scheuring
** Changed in: neutron Status: Expired => Confirmed -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1531511 Title: Add devref documentation for live-migration Status in neutron:

[Yahoo-eng-team] [Bug 1595250] [NEW] ml2 Use None for portbinding.host instead of an empty String

2016-06-22 Thread Andreas Scheuring
Public bug reported: Seems like ML2 portbinding uses '' for indicating that the port is bound to no host, while in times before ml2 "None" was used. This leads to some strange checks in the code like [1] This bug is to clean this up internally. The API still should take both values, an empty stri

[Yahoo-eng-team] [Bug 1587498] [NEW] macvtap agent does terminates when NoopFWDriver is specified via "noop" alias

2016-05-31 Thread Andreas Scheuring
, although the alias way is also valid. ** Affects: neutron Importance: Undecided Assignee: Andreas Scheuring (andreas-scheuring) Status: In Progress -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https

[Yahoo-eng-team] [Bug 1587444] [NEW] macvtap: agent starts although no interface_mapping is provided

2016-05-31 Thread Andreas Scheuring
Public bug reported: As the macvtap agent does only support flat and vlan networks, the physical_interface_mappings prameter must contain at least one mapping. Without a mapping, no networkconnectivity can be provided by this agent. Ideally the agent would terminate with an appropriate error mess

[Yahoo-eng-team] [Bug 1585983] Re: horizon issue with connection to keystone

2016-05-30 Thread Andreas Scheuring
** Also affects: horizon Importance: Undecided Status: New ** Also affects: keystone Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Dashboard (Horizon). https://bugs

[Yahoo-eng-team] [Bug 1580898] [NEW] [RFE] Network node support and improved testing for macvtap agent

2016-05-12 Thread Andreas Scheuring
Public bug reported: Today, only unit & some basic functional tests are executed for the macvtap agent. The goal is to extend the macvtap agent to * support non-compute ports via macvlan (allows spawning a single node system with l3, dhcp and so on) * Add a tempest test job for it * enhance fun

[Yahoo-eng-team] [Bug 1580891] [NEW] [RFE] Move SR-IOV Agent to common agent framework

2016-05-12 Thread Andreas Scheuring
Public bug reported: As the linuxbridge and the macvtap agent now share a lot of common code via the common agent class, it's time to move the sr-iov agent there as well! This would be a 3 step approach: #1 Refactor the common agent to match some sr-iov agent requirements #2 Refactor the sr-iov a

[Yahoo-eng-team] [Bug 1580880] [NEW] [RFE] Distributed Portbinding for all port tpyes

2016-05-12 Thread Andreas Scheuring
Public bug reported: Summary === Today only DVR ports can be bound to multiple hosts. But having a port bound to multiple hosts does also make sense for a compute port during live migration. For a certain period of time the port could be bound to the source and target at the same time (Althou

[Yahoo-eng-team] [Bug 1560957] [NEW] ovs mech_driver depends on neutron server firewall_driver option instead of the agent firewall_driver option to determine if hybrid plug can be used

2016-03-23 Thread Andreas Scheuring
Public bug reported: The ovs mechanism driver determins if hybrid plug should be used along the firewall_driver [1] setting that is made on the neutron server [2]. IPTABLES_FW_DRIVER_FULL = ("neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver") hybrid_plug_requ

[Yahoo-eng-team] [Bug 1557407] [NEW] macvtap: add devstack support for macvtap agent

2016-03-15 Thread Andreas Scheuring
Public bug reported: The Macvtap agent that was introduced in Mitaka [1] requires some devstack support. As only compute attachments are supported (at the moment), the devstack support will be restricted to - Single Nodes without l3 & dhcp agent - Multi Nodes running ovs or lb on the controller/

[Yahoo-eng-team] [Bug 1554197] Re: Deleting router-gateway-port throws a DB foreign key error

2016-03-08 Thread Andreas Scheuring
*** This bug is a duplicate of bug 1535707 *** https://bugs.launchpad.net/bugs/1535707 Marking this as duplicate, as the root cause of both is the same. I'll expand the other bugs descirption to also cover this issue ** This bug has been marked a duplicate of bug 1535707 Create router with

[Yahoo-eng-team] [Bug 1282956] Re: ML2 : hard reboot a VM after a compute crash

2016-03-07 Thread Andreas Scheuring
that worked! Additional queries to do: use neutron update ml2_port_bindings set host = 'new-host' where host = 'old-host'; update ml2_port_binding_levels set host = 'new-host' where host = 'old-host'; Setting Neutron to won't fix and adding bug against docs + providing a fix. ** Also affects:

[Yahoo-eng-team] [Bug 1553653] Re: Add a description field to all standard resources

2016-03-07 Thread Andreas Scheuring
** Also affects: openstack-api-site Importance: Undecided Status: New ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1553653

[Yahoo-eng-team] [Bug 1553451] Re: Add timestamp for neutron core resources

2016-03-07 Thread Andreas Scheuring
** Changed in: neutron Status: New => Confirmed ** Also affects: openstack-api-site Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/155345

[Yahoo-eng-team] [Bug 1553128] Re: MOS8.0 (mirantis liberty) + neutron-lbaas-dashboard

2016-03-04 Thread Andreas Scheuring
** Also affects: horizon Importance: Undecided Status: New ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1553128 Title: M

[Yahoo-eng-team] [Bug 1552742] [NEW] macvtap: automatically generate example config file

2016-03-03 Thread Andreas Scheuring
Public bug reported: For newly added macvtap agent, example configs are not getting autogenerated like introduced with [1] [1] https://review.openstack.org/#/c/204206/ ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a m

[Yahoo-eng-team] [Bug 1551785] Re: macvtap: Macvtap L2 Agent

2016-03-03 Thread Andreas Scheuring
ode) for help if you need to. commit 2e7eb09271912e9db1948b15ab3f8e184d4c324a Author: Andreas Scheuring Date: Tue Feb 2 16:34:59 2016 +0100 macvtap: Macvtap L2 Agent This agent is required by the macvtap ml2 driver to support macvtap attachments for libvirt qemu/k

[Yahoo-eng-team] [Bug 1538695] Re: sriov-mech: Introduce a new VIF type for PF vnic type

2016-03-03 Thread Andreas Scheuring
** Also affects: openstack-api-site Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1538695 Title: sriov-mech: Introduce a new VIF type for

[Yahoo-eng-team] [Bug 1246525] Re: Horizon displays floating IPs to allocate from unreachable external networks of other tenants.

2016-03-03 Thread Andreas Scheuring
Setting to invalid along the comment of Akihiro. ** Changed in: neutron Status: Incomplete => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1246525 Title: Horizon displa

[Yahoo-eng-team] [Bug 1514548] Re: Cleanup linuxbridge_neutron_agent

2016-03-03 Thread Andreas Scheuring
** Changed in: neutron Status: In Progress => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1514548 Title: Cleanup linuxbridge_neutron_agent Status in neutron: Fi

[Yahoo-eng-team] [Bug 1355153] Re: Inefficient implementation of Linuxbridge agent get_bridge_for_tap_device

2016-03-03 Thread Andreas Scheuring
already closed by commit 459980f04a62e2ef15a2b8c91ac6c8d6ee484167 Author: Cedric Brandily Date: Thu Nov 5 23:40:45 2015 +0100 Move LinuxBridge related features to bridge_lib This change moves from linuxbridge agent[1] to bridge_lib[2] bridge only related features and adds func

[Yahoo-eng-team] [Bug 1552631] Re: [RFE] Bulk Floating IP allocation

2016-03-03 Thread Andreas Scheuring
Hi Alex, thanks for reporting this new feature request. I wonder, is this an action you would like to do via the GUI only, or also via the Rest API? ** Summary changed: - Multiple Floating IP allocation + [RFE] Bulk Floating IP allocation ** Tags added: rfe ** Also affects: horizon Importan

[Yahoo-eng-team] [Bug 1552487] Re: Add tag mechanism for network resources

2016-03-02 Thread Andreas Scheuring
** Also affects: openstack-api-site Importance: Undecided Status: New ** Also affects: openstack-manuals Importance: Undecided Status: New ** Changed in: neutron Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineerin

[Yahoo-eng-team] [Bug 1552077] Re: Use network RBAC feature for external access

2016-03-02 Thread Andreas Scheuring
** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1552077 Title: Use network RBAC feature for external access Status in neutr

[Yahoo-eng-team] [Bug 1551907] Re: Add API extension for reporting IP availability usage statistics

2016-03-02 Thread Andreas Scheuring
** Also affects: openstack-api-site Importance: Undecided Status: New ** Also affects: openstack-manuals Importance: Undecided Status: New ** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engi

[Yahoo-eng-team] [Bug 1552089] Re: Make agent interface plugging utilize network MTU

2016-03-02 Thread Andreas Scheuring
** Also affects: openstack-manuals Importance: Undecided Status: New ** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/155

[Yahoo-eng-team] [Bug 1552077] Re: Use network RBAC feature for external access

2016-03-02 Thread Andreas Scheuring
** Also affects: openstack-api-site Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1552077 Title: Use network RBAC feature for external ac

[Yahoo-eng-team] [Bug 1552085] Re: Router Interfaces Are Instantiated in Compute Nodes Which do not need them.

2016-03-02 Thread Andreas Scheuring
Hmmm, I think the nature that's how it should work, isn't it? If you are connected to a router, my expectation would be that I could ping all of the routers interfaces (e.g. for test purposes). And what if another vm on another subnet is spawned on another compute node, would you expect that this

[Yahoo-eng-team] [Bug 1551219] [NEW] Remove hard coded "LinuxBridge" logs from common agent and make it variable

2016-02-29 Thread Andreas Scheuring
Public bug reported: The Common Agent still has some hard coded "LinuxBridge" logs, although it might be used by other agents (like macvtap agent) as well. Those logs should reflect the agent type using the common agent. ** Affects: neutron Importance: Undecided Status: New -- You

[Yahoo-eng-team] [Bug 1550400] [NEW] Macvtap driver/agent migrates instances on an invalid pyhsical network

2016-02-26 Thread Andreas Scheuring
Public bug reported: More details to come soon ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1550400 Title: Macvtap

[Yahoo-eng-team] [Bug 1536942] [NEW] lb: "RTNETLINK answers: Transport endpoint is not connected" when setting vxlan device

2016-01-22 Thread Andreas Scheuring
Public bug reported: Sometimes the following error appears in the linuxbridge q-agt log: [1] Running command (rootwrap daemon): ['ip', 'link', 'set', 'vxlan-1066', 'up'] Exit code: 2; Stdin: ; Stdout: ; Stderr: RTNETLINK answers: Transport endpoint is not connected This happens after a vxlan d

[Yahoo-eng-team] [Bug 1532171] [NEW] lb: hard reboot or destroy of vm can lead to error log and agent resync

2016-01-08 Thread Andreas Scheuring
Public bug reported: A tap device can suddenly disappear e.g. due to instance destroy. If the agent is in the midst of processing a a device update for this tap device (e.g. due to a security group update), the agent logs the following errors: 2016-01-07 17:43:52.225 DEBUG neutron.agent.linux.uti

[Yahoo-eng-team] [Bug 1531862] [NEW] ServerPersonalityTestJSON:test_rebuild_server_with_personality fails intermittent

2016-01-07 Thread Andreas Scheuring
Public bug reported: 24 Hits in the last 30 days - all of them after the 31st of December! [1] 2016-01-07 11:08:30.061 | Captured traceback: 2016-01-07 11:08:30.061 | ~~~ 2016-01-07 11:08:30.061 | Traceback (most recent call last): 2016-01-07 11:08:30.062 | File "tempes

[Yahoo-eng-team] [Bug 1522710] [NEW] Functional Test does not clean up ports when in default network namespace

2015-12-03 Thread Andreas Scheuring
default network namespace ** Affects: neutron Importance: Undecided Assignee: Andreas Scheuring (andreas-scheuring) Status: In Progress -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https

[Yahoo-eng-team] [Bug 1520618] [NEW] Revert Disable IPV6 on bridge devices. It causes dhcp tap not plugged in bridge with vlan config

2015-11-27 Thread Andreas Scheuring
Public bug reported: Commit [1] disables ipv6 on linuxbridges. On my linuxbridge vlan system, this fix causes the code ensure_bridge() to return too early without passing the bridge_name back. The introduced method returns the output of the systcl -w call +def disable_ipv6(self): +cmd

[Yahoo-eng-team] [Bug 1520255] [NEW] All linuxbridge agent tests executed with prevent_arp_spoofing=False

2015-11-26 Thread Andreas Scheuring
Public bug reported: All testcases of the linuxbridge agent are executed with prevent_arp_spoofing=False. The solution is to add testcases that are executed with prevent_arp_spoofing=True. arp_protect should be mocked and it should be ensured, that it has been called. ** Affects: neutron Im

[Yahoo-eng-team] [Bug 1515906] Re: lb: TypeError: %d format: a number is required, not unicode found in linuxbridge agent log

2015-11-16 Thread Andreas Scheuring
Had a quick look at 2 other patchsets - Haven't found this message in there. So probably related to my patchset? I set to invalid - try to investigate and if still exists, open this bug again. Sorry for the inconvenience! ** Changed in: neutron Status: Triaged => Invalid ** Changed in: os

[Yahoo-eng-team] [Bug 1515906] [NEW] lb: TypeError: %d format: a number is required, not unicode found in linuxbridge agent log

2015-11-13 Thread Andreas Scheuring
Public bug reported: Seems NOT to have any functional impact! The following message showed up during linuxbridge tempest runs in q-agt logfile [1]: 2015-11-12 09:20:08.548 DEBUG neutron.agent.linux.utils [req-b7d3dcbb-0a93-4474-b4dc-d8bfea202fb3 None None] Running command (rootwrap daemon): ['

[Yahoo-eng-team] [Bug 1515311] [NEW] Instance scheduling based on Neutron properties

2015-11-11 Thread Andreas Scheuring
Public bug reported: Add support to allow nova scheduler place instances along available neutron properties. Use case: - Scheduling along physical network: A certain network (e.g. your fast 100Gbit network) is only available to a subset of the nodes (e.g. per rack). - Schedulding along QoS attr

[Yahoo-eng-team] [Bug 1496929] Re: instance launch failed: TooManyExternalNetworks: More than one external network exists

2015-09-18 Thread Andreas Scheuring
Looks like a configuration issue. Maybe one of the vmware neutron folks can help out? ** Summary changed: - instance luanch failed + instance launch failed: TooManyExternalNetworks: More than one external network exists ** Also affects: neutron Importance: Undecided Status: New -- Y

[Yahoo-eng-team] [Bug 1495960] [NEW] linuxbridge with vlan crashes when long device names used

2015-09-15 Thread Andreas Scheuring
Public bug reported: The linuxbridge agent creates a linux vlan-device for each openstack vlan network that has been defined. Therefore the code uses the following naming scheme : . Example: eth-dev-name: eth0, vlan-id: 1000 --> eth0.1000 This works fine, if eth-dev-name is a short name like "e

[Yahoo-eng-team] [Bug 1480979] [NEW] Adding macvtap ml2 driver and agent

2015-08-03 Thread Andreas Scheuring
Public bug reported: Adding macvtap ml2 driver and agent to neutron. This feature allows instance network attachments via macvtap. A first spec has been hosted on github [1]. A place for this agent was discussed on [2]. The decision was to have it living somewhere in the neutron tree. [1] htt

[Yahoo-eng-team] [Bug 1423484] Re: dhcpv6-stateful: error message in contradiction to spec

2015-07-31 Thread Andreas Scheuring
** Changed in: neutron Status: In Progress => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1423484 Title: dhcpv6-stateful: error message in contradiction to spec Status

[Yahoo-eng-team] [Bug 1467919] Re: networking-macvtap ml2 driver and agent

2015-07-09 Thread Andreas Scheuring
Just set up my external repo along the guidlines and it's working perfeclty without any fixes into Neutron. Great work! ** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neu

[Yahoo-eng-team] [Bug 1467919] [NEW] netwokring-macvtap ml2 driver and agent

2015-06-23 Thread Andreas Scheuring
Public bug reported: This defect is to track the integration of the stackforge networking- macvtap ml2 plugin + agent [1] into neutron [1] https://review.openstack.org/#/c/189644/ ** Affects: neutron Importance: Undecided Status: New ** Tags: rfe -- You received this bug noti

[Yahoo-eng-team] [Bug 1423484] [NEW] dhcpv6-stateful: error message in contradiction to spec

2015-02-19 Thread Andreas Scheuring
Public bug reported: The spec [1] points out how a subnet configured with ipv6 address mode dhcpv6-stateful and ra mode none should behave: "VM obtains IPv6 address and optional info from dnsmasq using DHCPv6 stateful" [1] Now creating such an subnet and adding it as routers interface resulted