On 20-Feb-2007 Joe Abley wrote:
On 20-Feb-2007, at 17:16, Martin Kealey wrote:
Question: are there any (DSL?) CPE units for sale or in development that will do v6 to v4 translation, plus v6 pass-thru?
In practical terms (and I'm being only slightly pedantic) there *is* no v6 to v4 translation. There are tunnels, and there is native IPv6.
Are you saying that when a v6 host says "Connect to ::ffff:cfdb:2d24", the answer will invariably be "can't"? Otherwise we're talking about a third option that smells rather like SNAT, but running on steroids. Hence my using the term "translation". It makes sense for this "natting" to occur as far as possible from the v6 source host and as near as possible to the target v4 host, but in any case it can only go as far away as your v6 transit allows. Since we're only starting the game, that means the CPE border kit. Although I asked about doing both "translation and pass-thru", if the ISP at the other end is sensible it should only need to do one of those at a time. -Martin reference: http://xml.resource.org/public/rfc/html/rfc2373.html#anchor11