Comment 3 for bug 1845166

In a master job... looks like overcloud nodes are not getting ip addresses

### IPv6 addresses
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1350 state UP qlen 1000
    inet6 fe80::f816:3eff:fe3e:41da/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::f816:3eff:fefe:b33a/64 scope link
       valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::f816:3eff:fe4d:4f5e/64 scope link
       valid_lft forever preferred_lft forever
5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::f816:3eff:fe18:9bf7/64 scope link
       valid_lft forever preferred_lft forever
6: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::f816:3eff:fe0d:9a59/64 scope link
       valid_lft forever preferred_lft forever
7: eth5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::f816:3eff:fe14:5c9c/64 scope link
       valid_lft forever preferred_lft forever
### IPv6 routing

http://logs.rdoproject.org/11/684411/5/openstack-check/tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001/54e01f5/logs/overcloud-controller-0/var/log/extra/network.txt.gz