Only 5x IPv4 /8 remaining at IANA

Thu Oct 21 17:38:39 UTC 2010

> -----Original Message-----
> From: Owen DeLong 
> Sent: Thursday, October 21, 2010 5:12 AM
> To: Jens Link
> Cc: NANOG
> Subject: Re: Only 5x IPv4 /8 remaining at IANA
> 
> 
> On Oct 21, 2010, at 4:59 AM, Jens Link wrote:
> 
> > Owen DeLong writes:
> >
> >> All well and good until some of their customers are on IPv6...
> >> Then what?
> >
> > Someone will build an appliance to deal with this problem. ;-)
> >
> And I estimate that the user experience through such appliances will
> be poor or worse, driving their former customers to their competitors
> that implemented native IPv6.
> 
> Owen
> 

And it will be an expensive operation when someone is pushing multiple
gigabits or tens of gigabits of traffic. NAT is probably one of the more
expensive operations in a large network facing the Internet that handles
a lot of traffic.