Re: We hit half-million: The Cidr Report

[Owen DeLong <owen () delong com>]

On May 1, 2014, at 4:57 PM, Fred Baker (fred) <fred () cisco com> wrote:

> On May 1, 2014, at 4:10 PM, Jean-Francois Mezei <jfmezei_nanog () vaxination ca> wrote:
>
> > Pardon my ignorance here. But in a carrier-grade NAT implementation that
> > serves say 5000 users, when happens when someone from the outside tries
> > to connect to port 80 of the shared routable IP ? 
>
> More to the point, your trust boundary includes 5000 people. Do you know them all? Who maintains their systems and 
> software? Do you trust them?
>
> What happens if they approach you from behind the NAT?

It’s unlikely that CGN changes this at all… Most CGN deployments will be a second layer of horror on top of the 
existing horrors already present.

Owen