Qemu virtio vlan filtering blocks traffic
Bug #1084969 reported by
Soren Hansen
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | ||
|---|---|---|---|---|---|---|
| Cisco Openstack | ||||||
| Essex |
Triaged
|
Medium
|
Unassigned | |||
| Folsom |
Triaged
|
Medium
|
Unassigned | |||
Bug Description
QEmu filters VLAN traffic for virtio interfaces. When an interface has a VLAN added inside the guest, this setting propagates to the QEmu process which then handles the filtering. This is fine.
However, for some reason, we're seeing traffic coming into QEmu that is has a VLAN tag on it, so it gets filtered in QEmu. We dont' want the guests to know about the details of the networking infrastructure of the host.
As a temporary workaround for this, we've added a patch to QEmu-kvm that disables the VLAN filtering altogether. We need to get to the bottom of why these packets are still VLAN tagged when they reach QEmu.
| Changed in openstack-cisco: | |
| assignee: | nobody → Soren Hansen (soren) |
| importance: | Undecided → Medium |
| status: | New → Triaged |
| no longer affects: | openstack-cisco |
Revision history for this message
| Soren Hansen (soren) wrote | #1 |
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As interesting as this was, I'm probably not ever going to find time to work on it.