can not create router when gateway ip is not in subnet

[xhzhf]

When we create subnet, neutron does not check whether gateway ip is in the subnet ip pool.
Next we create route, the gateway ip is assigned to route. At this time, neutron check whether ip is in the subnet, the result is failure.

sulution:when creating subnet, neutron should check gateway ip.

[Sridhar Gaddam (sridhargaddam)]

Earlier, this configuration setting was controlled via cfg.CONF.force_gateway_on_subnet and the default value used to be FALSE.

However, as part of the following Bug: https://bugs.launchpad.net/neutron/+bug/1304181 it is changed to True.
Please check the value of force_gateway_on_subnet in neutron.conf

[Sridhar Gaddam (sridhargaddam)]

@xhzhf, please share the steps to reproduce this issue if you think its a bug in Neutron.