[6bone] Is minimum allocation /64 now?

[Tim Chown]

On Sun, Oct 26, 2003 at 04:06:56AM -0800, Bill Manning wrote:
> 
> 	from this side of the fence, since there are so many discrete
> 	IPs in a /64 that you are being announced, that looks like
> 	a target rich environment for forged source addresses for spam. 
> 	but, as you point out, YMMV.

Agreed, you can't relying on blacklisting specific IP's; you should instead
blacklist whatever the customer allocation is.   But that from discussion
here could be anything from a single IP to a /48, and you don't know :)

Given the RFC3041 privacy addresses will be commonly used, a sender on a
subnet can come from any potential host address anyway.

Tim