We are running a project to use pure IPv6 to get access to IPv4 services, such as webs.
In this project, we are using 6 to 4 NAT-PT to translate IPv6 address to IPv4 address.
However, we are going to support tens of thousands users to use this service, the scalability becomes an issue. I have heard of some hardware like CGSE which could support large amount of 6 to 4 translations. Did anyone has experience on using this Engine?
Can this engine be supported by Cisco 10K routers?
Yes, ASR and CGSE blade can support lots of translations. Both support stateless translation today, see http://www.cisco.com/go/cgv6. However, stateless translation cannot be used if you're going from the IPv6 Internet to an IPv4 network (that is, from the IPv6 Internet to your own IPv4 servers). For that, you need stateful translation. I don't believe we have announced dates for availability of products that support stateful NAT64.
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