Public works dual-stacks the IP fabric underlay with both IPv4 and IPv6. What operational consideration matters most for overlay VTEP reachability?
Select an answer to reveal the explanation.
Short Explanation
If the VTEP speaks IPv6, the underlay needs an IPv6 road to it—same idea for IPv4. Dual-stack means two maps, not magic translation. Pick the families your tunnels actually use and route them.
Full Explanation
Dual-stack underlays require coherent routing for each address family that VTEPs use. Overlay tunnels fail when the VTEP address family lacks underlay reachability even if the other family is healthy. IPv6 does not auto-publish IPv4 VTEP reachability, and dual-stack does not inherently forbid VXLAN. Treat each family as a first-class underlay routing plane in operations.