Random comment - wouldn't you typically remove the gateway IP from the allocation pool during subnet creation? There is cli/api support for that:
--allocation-pool start=<ip-address>,end=<ip-address>
devstack typically does that when it configures the external network/subnet, but in an actual deployment it's useful since there could be a number of IP addresses you do not want to use.
Random comment - wouldn't you typically remove the gateway IP from the allocation pool during subnet creation? There is cli/api support for that:
--allocation-pool start=< ip-address> ,end=<ip- address>
devstack typically does that when it configures the external network/subnet, but in an actual deployment it's useful since there could be a number of IP addresses you do not want to use.