Neutron linuxbridge agent no longer accepts an IPv6 VXLAN local_ip

[Dustin Lundquist]

Neutron linuxbridge agent no longer accepts cfg.CONF.VXLAN.local_ip as an IPv6 address. Prior to 9fc45cee this restriction wasn't in place. Neutron ML2 with the linuxbridge mechanism driver had supported VXLAN over IPv6 since IceHouse.

/etc/neutron/plugins/ml2/ml2_conf.ini:

[DEFAULT]
[ml2]
tenant_network_types = vxlan
extension_drivers = port_security
type_drivers = local,flat,vlan,gre,vxlan
mechanism_drivers = openvswitch,linuxbridge
[ml2_type_flat]
[ml2_type_geneve]
[ml2_type_gre]
tunnel_id_ranges = 1:1000
[ml2_type_vlan]
[ml2_type_vxlan]
vni_ranges = 1001:2000
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
[agent]
tunnel_types = vxlan
root_helper_daemon = sudo /usr/local/bin/neutron-rootwrap-daemon /etc/neutron/rootwrap.conf
root_helper = sudo /usr/local/bin/neutron-rootwrap /etc/neutron/rootwrap.conf
[vxlan]
local_ip = 2001:db8::10
vxlan_group = ff05::10
enable_vxlan = True

When neutron-linuxbridge-agent is started, exits with:

CRITICAL neutron [-] ConfigFileValueError: Value for option local_ip is not valid: 2001:db8::10 is not an IPv4 address

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/263499
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=be9c9e3458ce61a299faebd974322f376c34c15e
Submitter: Jenkins
Branch: master

commit be9c9e3458ce61a299faebd974322f376c34c15e
Author: Dustin Lundquist <email address hidden>
Date: Wed Dec 30 15:59:36 2015 -0800

    Do not prohibit VXLAN over IPv6

    9fc45cee in introduced a regression prohibiting using VXLAN over
    IPv6. Relax restriction on local_ip, but validate that both
    local_ip and vxlan_group of the same address family. Move existing
    validation of vxlan_group into validate_vxlan_group_with_local_ip()
    method and refactor existing tests for that validation.

    Change-Id: I3d67732d2e1f3e079fee336b403744596fb7db77
    Depends-On: I6440445b80637a5a9f4de052cf5ea1fbd8dcf7d1
    Closes-Bug: #1531660

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/neutron 8.0.0.0b2 development milestone.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/270335

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/270335
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=2b96f42ddefcb3615bc03bb2b782a1ebe9e145c5
Submitter: Jenkins
Branch: stable/liberty

commit 2b96f42ddefcb3615bc03bb2b782a1ebe9e145c5
Author: Dustin Lundquist <email address hidden>
Date: Wed Dec 30 15:59:36 2015 -0800

    Do not prohibit VXLAN over IPv6

    9fc45cee in introduced a regression prohibiting using VXLAN over
    IPv6. Relax restriction on local_ip, but validate that both
    local_ip and vxlan_group of the same address family. Move existing
    validation of vxlan_group into validate_vxlan_group_with_local_ip()
    method and refactor existing tests for that validation.

    Change-Id: I3d67732d2e1f3e079fee336b403744596fb7db77
    Closes-Bug: #1531660
    (cherry picked from commit be9c9e3458ce61a299faebd974322f376c34c15e)

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/neutron 7.0.3 release.