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IPv6 RA/ND through Nexus

Hi,

We're setting up a new datacenter using a pair of Nexus 5548-L3 which are split between the two server rooms, and two pairs of 5548 with Fex in each server room.

On our actual network, we are fully dual ipv4/ipv6, and would like to do the same on the nexus. Unfortunatly, until Q3 2012 the Nexus 5548 won't support IPv6 Routing (even static route).

To circumvent this limitation, we have a 3750G connected to both 5548-L3 through a VPC which acts as the IPv6 default gateway for the datacenter vlans.

When connecting a host on a FEX, the host is sending Router Sollicitation, but it never receive an answer.

On the opposite, if we plug the host directly on the 3750G, it gets its auto-configured IPv6 Address and default route.

Anyonw has already ran against this problem?

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