Yahoo IPv6 upgrade could shut out 1 million Internet users

Yahoo is forging ahead with a move to IPv6 on its main Web site by year-end despite worries that up to 1 million Internet users may be unable to access it nitially.

Yahoo’s massive engineering effort to support IPv6 — the long-anticipated upgrade to the Internet’s main communications protocol — could at first shut out potential www.yahoo.com users due to what the company and others call IPv6 brokenness — via redwolf.newsvine.com