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openstackopenstack-neutron

How can I re-use a previously assigned floating ip in openstack neutron using horizon?

I have assigned a floating ip to an instance and released it. The floating ip is now free.

If I assigned a new floating ip to the same instance but I get the next floating ip in the range. How can I get the old (just released) floating ip instead?

I am using OpenStack 5.0 and would be interested in how to do this via horizon and the CLI.

Solution

  • neutron floatingip-list will show a list of addresses. Copy the id of the floatingip you want to reassign

    You need to identify the port that you want this address assigned to.
    neutron port-list (match the ip address of the vm in the list provided and copy the id of the port)

    neutron floatingip-associate id_of_floatingip id_of_port