Re: Irony
I've given a few talks to local IT groups about IPv6. The way I deal with the /64 /56 /48 stuff is by using the same wrong info that is in every networking book since 1993. A IPv6 class C is a /64. You have 64 bits of a network address and 64 bits for your host and this is the smallest you allocate to your local LAN (so yes you can have 18 quintillion hosts on your local lan). Auto configuration will use the hosts mac address to fill up that 64 bits (with 16 bits of padding in the middle) or you can assign hosts statically so their address end in nice readable stuff like ::1. The /56 is like the old class B where you have a (smallish) network of networks and a /48 is like the old class A when a large network of smaller networks of smaller networks is need. It is also helpful to look at the :: in the address as a division between the network side of things and the host side of things even though it technically just means "put as many zeros as can fit here"
Biting the hand that feeds IT
