Hi,
Please see the attached for the basic connectivity....
As can be seen from the diagram, the actual PPP connection on the S0/0 interface will be IPv6 only, and that IPv6 address will be allocated by the RADIUS. The issue I am trying to resolve is that the customer could be trying to contact an IPv4 only client at the far end of the network (other side of Transit). So, I am asking how I can get an IPv4 / IPv6 customer, connecting to the PPP Client (DSL) that then has a PPP IPv6 only interface (NAT of some sort?) and then to translate back at the "Core" before exiting into the transit network..... how do I get that from an ISP perspective.... Not from a customer.... I am trying to configure this and am stuck at this point....
Thank you