Hi, On 26.03.2015 15:37, Sanjeev Gupta wrote:
I am part of a team deploying IPv6 in S E Asia, for enterprises in their offices. As we do not have clarity on who the ISP will be, and this will change frequently till v6 availability stabilises, use of ULA is common. A NAT66 device is used much a normal IPv4 NAT gateway; the NAT66 means that if the upstream IPv6 prefix address changes, all the PCs do ot end up with new addresses.
Why would you bother with NAT66 in this case? I mean using ULA for local traffic (like printing, filesharing, building control etc.) seems fine to me. For global connectivity you could just use SLAAC or DHCPv6 as an additional address? Does it really matter, if these additional addresses change from time to time? Regards André