Comment 0 for bug 1539561

STR:
1) create default Neutron-VLAN environment
2) enable Ironic service on Settings tab (Additional Services section)
3) go to Networks tab and create a new node network group
4) change CIDR of baremetal network from the first (default) node network group from 192.168.3.0/24 to 192.169.3.0/24.
There will be a validation error in Neutron L3 section (BAremetal network parameters setting group): Ironic IP range and Ironic gateway are not in the baremetal CIDR
5) Fix the IP range and the gateway to match a new 192.169.3.0/24 CIDR.

Actual result: the validation error still exists, because the IP range and the gateway do not match baremetal network CIDR from the second node network group.

So, the issue is that different CIDRs for baremetal networks can not be saved from UI because of such validation errors in L3 parameters.
It is not clear, how to validate these parameters.