Once upon a time, William Herrin <bill@herrin.us> said:
Now, as to why they'd choose a /112 (65k addresses) for the interface between customer and ISP, that's a complete mystery to me.
I had to ask this here a while back, so I can now share. :-) IPv6 addresses are written as 8 16-bit chunk separated by colons (optionally with the longest consecutive set of :0 sections replaced with ::). A /112 means the prefix is 7 of the 8 chunks, which means you can use ::1 and ::2 for every connection. Of course, just because you allocate a /112 (or shorter) in your database doesn't mean you have to use it. You could also allocate a /112 for a point-to-point link and use a /127 (e.g. addresses ::a and ::b). -- Chris Adams <cmadams@hiwaay.net> Systems and Network Administrator - HiWAAY Internet Services I don't speak for anybody but myself - that's enough trouble.