Hi, On Thu, Apr 02, 2020 at 10:44:04AM +0200, Philip Homburg wrote: > >So you need to somehow build a prefix distribution mechanism, so people > >can have an arbitrary number of PD prefixes in "wherever network they=20 > >happen to be". So we're back to multi-level PD, with all the challenges > >(firewall rules, ACLs, internal routing, ...). And even then, a /48 > >might no longer be sufficient for a company with, say, 500 internal > >network segments and 40.000 employees - where it would be extremely=20 > >spacious otherwise. > > Independent of the prefix distribution mechanism, it may be worth revisiting > having a single /48 for an organisation of 40000 employees.
Sure, but if we start handing out /40s like there's enough of them,
eventually there won't be.
> There needs to be way to shield network complexity within a host from the
> rest of the network. If we don't then limits on what routers can track (ND)
> can become a limit in what we can do on a host. Even now people are already
> worried about the number of 'privacy addresses'.
>
> So having an address policy that would support a /64 per host makes sense to
> me.
This is, interestingly enough, too big and too small at the same time.
Gert Doering
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have you enabled IPv6 on something today...?
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