Companies using public IP space owned by others for internal routing

Mark Andrews marka at isc.org
Wed Dec 20 23:41:59 CST 2017


DNS64 “works” if you ignore what it breaks.  MAP-T does NAT46 to the NAT64 and doesn’t have the side effects of DNS64.

Why people insist that DNS64 is a “good" way to direct traffic to the NAT 64 I don’t understand.  MAP-T directs the traffic to the NAT64 without the side effects.  DNS64 was only ever a stop gap mechanism with lots of know side effects.

Mark

> On 21 Dec 2017, at 10:01 am, Ca By <cb.list6 at gmail.com> wrote:
> 
> 
> On Wed, Dec 20, 2017 at 5:54 PM Mark Andrews <marka at isc.org> wrote:
> As someone who has written a DNS64 implementation - DO NOT USE DNS64.  DNS64 breaks stuff.
> 
> Use MAP-T.  For those of you using DNS64 on the cellar side MAP-T can use the NAT64 you already have.
> 
> Mark
> 
> 
> That’s just your opinion, man. Works for me and my 70 million customers. 
> 
> Anything that is broken by DNS64 can be properly fixed by eliminating the need for it — by deploying ipv6. DNS64 only appears when the far end resource is single stacked (!)
> 
> We won’t be held hostage by folks who refuse to deploy ipv6, those days are over
> 
> Happy holidays!
> 
>  
> 
> > On 21 Dec 2017, at 9:33 am, Jens Link <lists at quux.de> wrote:
> >
> > Ca By <cb.list6 at gmail.com> writes:
> >
> >> http://jool.mx/en/index.html
> >>
> >> Free open source nat64
> >
> > And the DNS64 part can be done with powerdns (recursor), unbound, bind,
> > ... All OpenSource
> >
> > Jens
> > --
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> > | http://blog.quux.de | jabber: jenslink at quux.de        | ---------------  |
> > ----------------------------------------------------------------------------
> 
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742              INTERNET: marka at isc.org
> 

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org



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