OVN-Kubernetes using nodeIP instead of egressIP, incorrect NAT entries and other possible pod network issues

Solution Verified - Updated -

Issue

  • Pods using OVN Kubernetes EgressIP randomly initiate egress connections using nodeIP.
  • TCP connection errors on pods using OVN EgressIP when initiating egress communication.
  • Incorrect and/or staleSNAT entries.

Environment

Red Hat OpenShift Container Platform 4.10+

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