Symptom

The customer may find that in their DHCPv6 environment with Prefix Delegation that the route pointing to the delegated prefix on the client may not be installed. If this Nexus 9k serving as a relay is next to the last DHCPv6-PD relay in the path closest to the client, the customer may find that the last relay in the path may show the DHCPv6-PD route in its routing table.

Conditions

- Customer is using DHCPv6 with Prefix Delegation - Customer is using the Nexus 9k as a DHCPv6-PD relay with [ipv6 dhcp relay prefix-delegation route] configured - The Nexus 9k with [ipv6 dhcp relay prefix-delegation route] is not the last relay in the path on the way to the client

Workaround

This is expected behavior and there are currently no fixed releases as of 10.4(1)F - If the relay which is the last hop in the path toward the client supports both OSPFv3 and the redistribution of DHCPv6 routes, that relay can redistribute the DHCPv6 routes into OSPFv3 and advertise it to the Nexus 9k relays which are higher up in the path (toward the server) - If possible, the requesting router (DHCPv6-PD client) can be connected directly to the Nexus 9k relay

Further Problem Description