On Wed, 14 Jun 2006 15:03:13 -0500
  SDamron <sdamron at gmail dot com> wrote:

> Okay...This may sound silly...but, why on earth would you ever need 
>a
> box behind a firewall to have a real routable IP address?  Just use
> 1:1 NAT, and be MUCH SAFER!!

Real advertised applications you don't want outside the firewall. 
 Unfriendly applications that need a real IP.  Many reasons...

                  Lee