On Jan 20, 2012, at 9:36 PM, "Walter Dnes" <waltd...@waltdnes.org> wrote:
> On Fri, Jan 20, 2012 at 10:45:08AM -0600, Chris Frederick wrote > >> If you still want private addresses, IPv6 has unique local addresses >> (fc00::/7 range, http://www.sixxs.net/tools/grh/ula/ has a reg form to >> help assign a /48 to you). > > If it's a unique ***LOCAL*** address, then why is it a problem if > multiple places on the planet use it??? Doesn't sound very "local" to > me. The idea being, they are globally unique. Assume network XYZ needs to merge with network ABC. What happens in IPv4 when they both use the same private address space, you could be looking at re-assigning an entire 10/8 address block, including all services. It sucks. For IPv6, you go to the end point router for each network, configure a route to the opposite network, add some optional firewall/IPSec rules, and you're done. This saves days, if not weeks, of work with little, or no downtime. Home users probably won't care, most will probably use the public address space given to them from their ISP. Chris
