Description of the problem:
When creating a new LBAAS VIP on a load balancer pool using the dashboard (horizon) on RHOS 5 it was not required to specify an ip address, leaving the field blank resulted in automatic assignment of an ip address.
When creating a LBAAS VIP on a load balancer pool using the dashboard (horizon) on RHOS 6 leaving the field blank does not automatically assign an ip address and will not allow the the process to complete, the ip address must be entered manually before the user can initiate the creation of the VIP.
Sorry for the long delay here. It looks like this was fixed in kilo, the commit was https://github.com/openstack/horizon/commit/481b7a72f6fff9b3d636b9e370b1f27c60f88a6e
and it should be possible to backport this to juno version
Is this still required for juno?