Reviewed: https://review.opendev.org/c/openstack/neutron/+/793500 Committed: https://opendev.org/openstack/neutron/commit/4cd11f4dee494c5851318410c523dfcfbce4c824 Submitter: "Zuul (22348)" Branch: master
commit 4cd11f4dee494c5851318410c523dfcfbce4c824 Author: Anthony Timmins <[email protected]> Date: Thu May 27 16:11:04 2021 -0400 Use local and ip address to create vxlan interface Attempting to terminate a vxlan on the lo interface with multiple ip addresses fails. This seems to be because only the first ip address on the interface is used. If this address is invalid for vxlan creation (ie. 127.0.0.1), the vxlan interface will be created, but will not have a source ip address, and will therefore be non-functional. To remedy this issue, when L2population is used, we can set the local argument to the local_ip, thus ensuring the intended ip address is configured. Closes-Bug: 1929998 Change-Id: I9c54a268fc4ef9705637556ecba161bd6523a047 Signed-off-by: Anthony Timmins <[email protected]> ** 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/1929998 Title: VXLAN interface cannot source from lo with multiple IPs Status in neutron: Fix Released Bug description: Attempting to terminate a vxlan on the lo interface with multiple ip addresses fails. This seems to be because only the first ip address on the interface is used. If this address is invalid for vxlan creation (ie. 127.0.0.1), the vxlan interface will be created, but will not have a source ip address, and will therefore be non-functional. By setting and including the local argument during vxlan interface creation, we can ensure that the intended ip address is used. Linux version: Ubuntu 20.04.1 LTS Neutron version: neutron-21.0.0.0rc3.dev1 Current behavior: #No source IP address is found on the vxlan interface 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 10.1.1.1/32 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever # ip a show dev vxlan-62 <...> vxlan id 62 dev lo srcport 0 0 dstport 8472 ttl 32 ageing 300 udpcsum noudp6zerocsumtx noudp6zerocsumrx Expected behavior: #The source IP address is configured correctly 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 10.1.1.1/32 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever # ip a show dev vxlan-62 <...> vxlan id 62 local 10.1.1.1 dev lo srcport 0 0 dstport 8472 ttl 32 ageing 300 udpcsum noudp6zerocsumtx noudp6zerocsumrx To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1929998/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
