Jay Hennigan via mailop <mailop@mailop.org> wrote: > On 3/14/24 10:17, Graeme Fowler via mailop wrote: >> On 14 Mar 2024, at 16:53, Michael Grimm via mailop <mailop@mailop.org> wrote:
>>> I am getting listed almost on a daily basis on two IPv6 addresses of mine >>> which happen to be part of OVH's address space (yes, I know). >> …you do. So to: >>> Is there a way to make that de-listing more persistent? >> Yes. The following text is fairly instructive: >> In the last month we have observed 76 listings. >> 2001:41d0:701:1000::/64 has been detected 76 times in the last month. It has >> been removed 7 times. >> In the last month we have observed 63 listings. >> 2001:41d0:20a:800::/64 has been detected 63 times in the last month. It has >> been removed 4 times. >> As you can see, it’s the entire /64 getting listed in both cases. They’re >> unsavoury neighbourhoods by the look of things. > > And, with IPv6, the "entire /64" should be a single subnet. Either OVH is > sharing a /64 amongmultiple customers or OP has another machine that is > spamming from within the same subnet. > > Sharing a /64 among multiple customers doesn't make sense. It's not like OVH > is in danger of running out of IPv6 space any time soon. OVH is sharing a /64 subnet among multiple customers since they started their public cloud project. You are only provided with a single IPv6 address for your instance. In the years before that, I had had access to an exclusive /64 subnet. But that isn't the point of my initial post: Spamhaus is blocking the /64 subnet my address is part of. Fair enough. *But* on the other hand they are offering an web-based de-listing service without human interference. Good. After successful delisting, that particular IPv6 address becomes immediately de-listed. Fine. That tells me, that they must have a setup where individual IPv6 of a blocked /64 subnet become whitelisted. *That* worked in the past for a very long time. Only recently the whitelisting is of a very short time frame. 76 or 63 reportings in a /64 subnet aren't necessarily a hint for excessive spamming as mentioned in this thread. Regards, Michael _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
