On Thu, 10 Oct 2019 10:12:45 -0000 con_louca@hotmail.com wrote:

Hello all, I am trying to setup a bridge. I have 3 virtual machines. The 1st acting as router, the second acting as bridge and the 3rd is the client, like the following diagram ROUTER BRIDGE CLIENT internet(ovirtmng network) ----- [eth0 router --eth1 ] -------[eth0 --[br0]-- eth1] -------[--eth Windows 10]

The problem is that windows 10 is not able to connect the internet although is able to allocate ip. I use ovirt external network to connect the VMs to each other. It seems that Windows 10 sends ARP to BRIDGE, the BRIDGE sends the ARP to ROUTER but the replies are not passing the br0 when it comes a reply from ROUTER to Windows 10. I use oVirt 4.3.6. Do you know what should be the issue ? Is there a chance that ovirt blocking the bridge?

If "No Networkfilter" is set on all involved vNIC Profiles, oVirt will not block any traffic. Is "No Networkfilter" set already on all involved vNIC Profiles? Is BRIDGE able to ping both other VMs?

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Maybe obvious but have you set the firewall on Win10 to allow pings ( it defaults to blocking them). Regards, Paul S. ________________________________ From: con_louca@hotmail.com <con_louca@hotmail.com> Sent: 11 October 2019 09:37 To: users@ovirt.org <users@ovirt.org> Subject: [ovirt-users] Re: Bridge issue Hello Domikin I have already set No Networkfilter on all involved vNIC profiles. Unfortunately the BRIGDE cannot ping Win10. It can only ping router. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... oVirt Code of Conduct: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ovirt.... List Archives: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.ovir... To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

Hello Dominik, Please find attached the picture below. As show in the picture, what I am trying to achieve, is to create a software tap to create a connection between the bridge and windows machine. The problem also exists when trying to setup the same infrastructure using vlans or logical networks. ovirt-provider-ovn works perfect for Router to Windows connection etc. Please keep in mind that all the infrastructure shown in the picture consists only by VMs. Thanks for fast response. ________________________________ From: Dominik Holler <dholler@redhat.com> Sent: Friday, October 11, 2019 11:47 AM To: con_louca@hotmail.com <con_louca@hotmail.com> Cc: users@ovirt.org <users@ovirt.org> Subject: Re: [ovirt-users] Re: Bridge issue On Fri, 11 Oct 2019 08:37:27 -0000 con_louca@hotmail.com wrote:

Hello Domikin I have already set No Networkfilter on all involved vNIC profiles. Unfortunately the BRIGDE cannot ping Win10. It can only ping router.

ok, so the problem seems to be that the external network connecting BRIGDE to Win10 is not working. Can you please share the current ovn-controller.log of the hosts running BRIGDE and Win10? Were both hosts installed into a cluster with ovirt-provider-ovn as default network provider? Does reconfiguration of ovn like described in https://www.ovirt.org/documentation/admin-guide/chap-External_Providers.html... fixes the issue? If not, can you please share the ovn-controller.log after the reconfiguration?

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I re-created your scenario, and I noticed that an On Mon, Oct 14, 2019 at 9:36 AM <con_louca@hotmail.com> wrote:

It seems that is not possible to create a network bridge in Ovirt. I think is i bug.

It is not possible to have multiple MAC addresses on a single port of a network of ovirt-provider-ovn, because of the way OVN is working. If the link from the client VM to the bridge VM (and from bridge VM to router) would be usual (linux bridge based) VLANs, the scenario would work.

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