Re: Why /64

[Sander Steffann <[e-mail]>]

Hi Carl,

> Don't worry, I agree upon your statements wrt size of prefix, and always recommend our customers a /56 (or bigger), and this is for residential CPE, so I'm not really talking about "home-office" networks.

Don't underestimate how many people work from home one or two days a week :-)

> Reality today however says that the majority of users today is using a single /64 which I believe makes the ISP think on the size of the ia_pd to be used, hence they might select something smaller, also to get more value in the future for using bigger ones (for more advanced users), so it's sort of a trade-off I believe.

They can get as many IPv6 addresses as they need (even if giving each customer a /48) from the RIPE NCC, so the only reason to do this is to promote more expensive subscriptions. This saddens me, but I guess they will learn when users start complaining...

> Nevertheless, /64, the topic of these mails, on links should be kept imho, so not start tweaking them smaller just because some ISPs only handout some smaller ia_pd.  Arin guidelines seems to be in place for /56, should not be a bad idea to have this being used globally, but might not be that easy to enforce.

Ack!
Sander