Open Stack

Can Neutron do NAT between IPv4 and IPv6?  For example, if there is a 
Neutron router between an external network having only IPv6 subnets and a 
tenant network having only IPv4 subnets, can there be a floating IP 
address in v6 bound to a private IP address in v4?

If I have a tenant network with both IPv6 and IPv4 subnets and I attach 
that network to a router, does the router get both a v4 and a v6 address 
in the tenant network?

If I have an external network with both IPv6 and IPv4 subnets and I set 
that network to be the gateway network for a router, does that router get 
both a v4 and a v6 address in the external network?

A router can have only one gateway network, right?

If I have a dual stack Compute Instance, and a tenant network with both 
IPv4 and IPv6 subnets, I can give that Compute Instance just one network 
connection and the Compute Instance will be able to have both IPv4 and 
IPv6 addresses on that network, right?

Thanks,
Mike
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