The only current RFC on ULA is fc00::/7 but fc00::/8 remains undefined and has not been accepted by IETF. The block fd00::/8 can be divided up. All of this said none of these addresses would be routable on the internet and since a lot of the end user equipment can't handle a statically configured ULA address and still obtain a routable address from SLAAC or DHCP6. This creates major problems for networks with limited IT support. On larger corporate networks with skilled IT people it's very likely that they will have a static allocation from an ISP however smaller networks without IT people it can become a serious problem. Those people won't be skilled enough to figure out ULAs anyway.
-----Original Message----- From: Gert Doering <[email protected]> Sent: Wednesday, October 23, 2019 8:28 AM To: Michael Sturtz <[email protected]> Cc: Kristian McColm <[email protected]>; [email protected] Subject: Re: ipv6-ops Digest, Vol 159, Issue 1 Hi, On Wed, Oct 23, 2019 at 03:00:21PM +0000, Michael Sturtz wrote: > As far as I know ULA was deprecated in 9/2004 Those were site-locals, not ULAs. Gert Doering -- NetMaster -- have you enabled IPv6 on something today...? SpaceNet AG Vorstand: Sebastian v. Bomhard, Michael Emmer Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (0)89/32356-444 USt-IdNr.: DE813185279
