On Thu, Nov 6, 2014 at 12:38 PM, Grant Edwards <grant.b.edwa...@gmail.com> wrote: > > IPv6 link-local addresses are _way_ cool for dealing with embedded > devices that have network interfaces. You can actually set them up > and use them without having to faff about with dualing DHCP servers, > temporarily adding an IP address/route to your laptop/desktop, using > proprietary Windows-only widget-management utilities, configuring the > thing via serial console, USB port, hardware switches/jumpers, etc. >
They also don't change every time your dynamic prefix changes to the internet. I realize that 99% of people using IPv6 today at home have static IPs with tunnel brokers, but if it ever gets rolled out mainstrem it is likely to involve dynamic prefixes, which means anytime your ISP changes your outside IP every device in your house will change its internet-routable IP. Today you don't see that since everybody uses NAT. Link-local is really the solution to this if you don't want to use NAT in the IPv6 world (which is clearly the greater evil, and even then you're using link local anyway). -- Rich
