[ovirt-users] Re: Bridge not forwarding frames on node.

On Wed, May 13, 2020 at 9:44 PM s.danzi <s.danzi(a)hawai.it <mailto:s.danzi@hawai.it>> wrote: Hi to all! I'm having an issue with networks bridges on ovirt node. It's look like this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1279161 On VM I have a bridge between a tap device and network interface.  On node side the interface is bridged with bond0 vlan 128 (bond0.128 lacp). When I ping an host on the other side of tap device I can see this: Arp request goes from my lan to the tap device on vm. Arp reply return from tap vm and bridge forward this to vm networks interface. Using tcpdump on vm interface on node I can see the arp reply, using tcpdump on bond0.128 or on bridge I can't see the arp reply.  Arp request is forwarded from bond0.128 to vm net but arp reply isn't forwarded from vm net to bond0.128. Any chance that there is network filtering involved? Please check if the related vNIC profile has No Network Filter. If there is a Network Filter set, please shutdown the VM, set to No Network Filter in the vNIC profile, and start the VM again and check if the issue is gone.