Failed to start SDN plugin controller because service IP conflicts with host network

Solution Verified - Updated -

Issue

  • Trying to install OpenShift but the master pods wont start
  • The logs indicate an ip address conflict:
F0114 18:45:51.129957       1 controller_manager.go:141] Error starting "openshift.io/sdn" (failed to start SDN plugin controller: service IP: 10.0.0.0/24 conflicts with host network: 10.1.0.0/24)
  • What is the openshift_portal_net variable?

Environment

  • Red Hat OpenShift Container Platform
    • 3.11

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