IPv6 in the enterprise

S.P.Zeidler spz at serpens.de
Thu Apr 21 09:49:38 CEST 2011


Thus wrote Mikael Abrahamsson (swmike at swm.pp.se):

> On Thu, 21 Apr 2011, S.P.Zeidler wrote:
> 
> >>Could you please elaborate on what you do when you are "fixing it up"?
> >
> >Changing resolv.conf on its clients.
> 
> That doesn't make sense either for IPv4 or IPv6. You can use
> function IP addresses for both.

In IPv4 that's not necessary since the IP address is not bound to the
hardware.

> >>I would create a dedicated resolver address (a subnet with the
> >>address ::53 being the resolver) and then I would move this address
> >>around when the service changes physical hardware, perhaps even
> >>having it in multiple places (anycast).
> >
> >That is an instance of not using SLAAC, yes.
> 
> That's an instance of not *only* using EUI64 addresses, with SLAAC
> you can use ANY address on the subnet that is not already taken.

Sorry I was too terse, obviously. That in an instance of not using SLAAC
for the address of the resolver that is actually getting used for this
service.

The original premise was that all hosts including servers should use
SLAAC. I gave an example where even a very small setup reaches the point
where that is annoying.

regards,
	spz
-- 
spz at serpens.de (S.P.Zeidler)



More information about the ipv6-ops mailing list