RHV: fail to apply host network configuration with error "NmstateNotImplementedError"

Solution Verified - Updated -

Issue

When editing the configuration of the default route network, if fails with NmstateNotImplementedErrorerror:

Only a single default gateway is supported due to a limitation of NetworkManager

Environment

  • Red Hat Virtualization (RHV) 4.4
    • Red Hat Virtualization Host (RHVH) 4.4.1
    • nmstate-0.2.10-1.el8.noarch
    • NetworkManager-1.22.8-5.el8_2.x86_64
    • vdsm-4.40.22-1.el8ev.x86_64

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