Node restore fails with ReaR tool due to NFS Network is unreachable in Red Hat OpenStack Platform 13

Solution In Progress - Updated 2020-03-03T09:27:05+00:00 -

Issue

Node restore fails with ReaR tool in Red Hat OpenStack Platform 13 with:

ERROR: Mount command 'mount -v -t nfs -o rw,(...)' failed.
(...)
  mount.nfs: mount(1): Network is unreachable

Red Hat OpenStack Platform 13

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