Limitations
This feature has the following limitations:
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NAS-IP for authentication and accounting requests must be the same as the interface CoA-NAS VIP-IP in the RADIUS endpoint CoA-NAS interface configuration.
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The VRFs configured under RADIUS server-group and RADIUS endpoint must be the same.
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For the Disconnect Message (DM) request, the client VRF and the server VRF (CoA-NAS VIP VRF) must match. If there is a mismatch, the DM request is discarded.