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Re: IPv6 Anycast has been killed by LINUX patch in 2016 - who cares?

Tom Herbert <tom@herbertland.com> Sun, 08 August 2021 15:05 UTC

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From: Tom Herbert <tom@herbertland.com>
Date: Sun, 08 Aug 2021 08:05:04 -0700
Message-ID: <CALx6S366bXkCsyEkWCONBX5kcB9JzHU=aNF9hd+wT9FcTdShFw@mail.gmail.com>
Subject: Re: IPv6 Anycast has been killed by LINUX patch in 2016 - who cares?
To: Töma Gavrichenkov <ximaera@gmail.com>
Cc: Michael Tuexen <Michael.Tuexen@lurchi.franken.de>, 6man WG <ipv6@ietf.org>, IETF discussion list <ietf@ietf.org>
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On Sun, Aug 8, 2021, 8:01 AM Töma Gavrichenkov <ximaera@gmail.com> wrote:

> Peace,
>
> On Sun, Aug 8, 2021, 5:40 PM Tom Herbert <tom@herbertland.com> wrote:
>
>> Yes, a service needs multiple points of entry, but anycast isn't the only
>> way to do that. For instance, DNS can return different addresses to users
>> in different geographic regions, mirrors have long been used for file
>> download.
>>
>
> And the cybercriminal would just take down all of these unicast addresses
> with a DDoS, one by one, until so many scrubbing centers are down that the
> rest cannot handle the traffic, resulting in a domino effect.
>
> No, that doesn't work.
>

And yet these have techniques have been successfully deployed for many
years. Not every address seen on the Internet is anycast.

Tom



> --
> Töma
>
>>

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