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  1. OpenShift Bugs
  2. OCPBUGS-20261

Use a private IPv4 address range for the transit switch subnet in OVN IC

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      Previously, the IP address range `168.254.0.0/16` was the default IP address range that the Open Virtual Network Infrastructure Controller used for the transit switch subnet. With this update, the Controller uses `100.88.0.0/16` as the default IP address range. Do not use this IP range in your production infrastructure network. (link:https://issues.redhat.com/browse/OCPBUGS-20261[*OCPBUGS-20261*])
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      Previously, the IP address range `168.254.0.0/16` was the default IP address range that the Open Virtual Network Infrastructure Controller used for the transit switch subnet. With this update, the Controller uses `100.88.0.0/16` as the default IP address range. Do not use this IP range in your production infrastructure network. (link: https://issues.redhat.com/browse/OCPBUGS-20261 [* OCPBUGS-20261 *])
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      The IP range 168.254.0.0/16 that we chose as default for the transit switch is a public one. Let's use a private one instead, making sure it won't collide with address blocks already in use.

      In the future we might want to make this configurable, but for now let's just make sure we pick an IP range that is not used elsewhere in openshift.

              rravaiol@redhat.com Riccardo Ravaioli
              rravaiol@redhat.com Riccardo Ravaioli
              Anurag Saxena Anurag Saxena
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