> Hayriye Altunbasak wrote: > Should not you first investigate the reason why > IPv6 is not successful in terms of deployment > (yet)? So that, we won't make the same mistakes > if the world decides to sth else.... These reasons are well-known and two-fold: 1. It's an investment without any foreseeable ROI: - Scarcity of IPv4 addresses? Not any time soon and certainly not soon enough to justify any investment within the next n years. - Ease of renumbering? A myth. - Auto-configuration? Not fundamentally a breakthrough over DHCP. In other words: what is IPv6 going to buy me or my business in the next n years? Nothing I don't already have with IPv4; why should I invest in it (especially given the tight finances these days) ? 2. It does not even provide what IPv4 does: - No multihoming. - No PA addresses. - Ni private addresses. Michel.