Cisco (http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/products_configurati on_guide_chapter09186a00801d6600.html) says: NAT-PT is not recommended for a scenario in which an IPv6-only network is trying to communicate to another IPv6-only network via an IPv4 backbone or vice versa, because NAT-PT would require a double translation to be performed.
I thought I'd give it a try anyway, but it will only work for the first ping. At least that's how far I got. Did someone try this as well and got it working for more than one ping? Kim
