hairpin mode on vnet bridge ports causes false positives on IPv6 duplicate address detection
Bug #1229625 reported by
Bernhard M. Wiedemann
This bug affects 2 people
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| OpenStack Compute (nova) |
Fix Released
|
Medium
|
Bernhard M. Wiedemann | ||
| Havana |
Fix Released
|
Medium
|
Kevin Bringard | ||
Bug Description
This is bug 1011134 again happening in a cloud that does not have the ipv6 flag set,
so the previous patch from https:/
is not used.
Guest VMs will try to configure IPv6 link-local addrs even without the outer parts supporting it
and can throw errors when they see inbound packets with their own MAC address.
Note: I think, this bug can not be unit-tested as it requires a complex setup including running a VM in a cloud.
| Changed in nova: | |
| assignee: | nobody → Bernhard M. Wiedemann (ubuntubmw) |
| status: | New → In Progress |
| tags: | added: network |
Revision history for this message
| OpenStack Infra (hudson-openstack) wrote Fix merged to nova (master) | #1 |
| Changed in nova: | |
| status: | In Progress → Fix Committed |
| Changed in nova: | |
| milestone: | none → icehouse-1 |
| Changed in nova: | |
| status: | Fix Committed → Fix Released |
| Changed in nova: | |
| milestone: | icehouse-1 → 2014.1 |
Revision history for this message
| OpenStack Infra (hudson-openstack) wrote Fix proposed to nova (stable/havana) | #2 |
| tags: | added: havana-backport-potential |
| Changed in nova: | |
| importance: | Undecided → Medium |
| tags: | removed: havana-backport-potential |
Revision history for this message
| OpenStack Infra (hudson-openstack) wrote Fix merged to nova (stable/havana) | #3 |
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Reviewed: https:/
Committed: http://
Submitter: Jenkins
Branch: master
commit 9c044d2c94812e1
Author: Bernhard M. Wiedemann <email address hidden>
Date: Fri Sep 6 09:47:49 2013 +0200
Always filter out multicast from reflection
Instances will try IPv6 neighbour discovery via multicast
even in an IPv4-only cloud and can throw errors
if they see inbound packets from their own MAC address
Closes-bug: #1229625
Change-Id: I3539e788fe0751