Margaret Wasserman wrote: > Unfortunately, it is not clear that the market cares enough > about end-to-end transparency to fund the development of > NPTv6 or IPv4 NAT-aware end-nodes, because while end-to-end > transparency is something that we in the IETF hold dear, it > does not have enough practical value for Internet-connected > enterprises that they have been willing to incur any cost or > inconvenience to maintain it. In fact, in many cases, they > prefer _not_ to have it. Totally wrong. Many internet-connected enterprises have been willing to pay extra money to have fixed IP addresses, and, worse, independent global routing table entries for multihoming, to reliably maintain the end to end transparency to reach their servers. They do have practical values. That's why the global routing table have bloated so much. Masataka Ohta