On Thu, 21 Jun 2012 18:52:18 -0500, Mark Felder wrote: >On Thu, 21 Jun 2012 18:39:24 -0500, Rod Whitworth <glis...@witworx.com> >wrote: > >> It is not a "school of thought" - it is how it is. I have seen one /126 >> out in the wild but it is very lonely. > >I work at an ISP/datacenter. We use /126s for the link net. Handing out >/64's "because you can" is stupid in my worthless opinion :-) >
It's not because you can, it's because it's best practice, it makes renumbering easier and most of all when you use /64s your subnet addresses are so easily readable. What do you have? /24 ? /32 ? /48 ? /56 ? All of the above have xx00:0:0:0:0:0 as the last part of the address and when you slice off /64s they all have 0:0:0:0 as the last four words so documenting is easy for any of your subnets. But I guess that being ultra-frugal with sunbnet prefixlen is really important for operators who have more clients than there are grains of sand on the face of the earth. That's roughly a /57's worth. 8-)) *** NOTE *** Please DO NOT CC me. I <am> subscribed to the list. Mail to the sender address that does not originate at the list server is tarpitted. The reply-to: address is provided for those who feel compelled to reply off list. Thankyou. Rod/ --- This life is not the real thing. It is not even in Beta. If it was, then OpenBSD would already have a man page for it.
