Subject: Re: Request comment: list of IPs to block outbound Date: Sun, Oct 13, 2019 at 09:24:39AM -0700 Quoting William Herrin (bill@herrin.us):
100.64.0.0/10 Private network Shared address space[3] for communications between a service provider and its subscribers when using a carrier-grade NAT.
This space is set aside for your ISP to use. like RFC1918 but for ISPs. It is not specifically CGNAT. Unless you are an ISP using this space, you should not block destinations in this space.
I have a hard time finding text that prohibits me from running machines on 100.64/10 addresses inside my network. It is just more RFC1918 space, a /10 unwisely spent on stalling IPv6 deployment. /Måns, guilty. -- Måns Nilsson primary/secondary/besserwisser/machina MN-1334-RIPE SA0XLR +46 705 989668 It's OKAY -- I'm an INTELLECTUAL, too.