[CentOS] Wierd Networking Problem

> > Have you contacted "isp.net", whoever they are, to make sure that they
> > have not blackholed or tarpitted that particular machine's IP address
> > for some reason?
>
> He said that the box is behind a nat and only that box behind the nat
> has a problem. I doubt that it has been specifically targetted by ip.

I've narrowed things down to not include the Linux box. :)

I took the Linux box's IP and moved it to another  non Linux machine.  The 
same issues occur.

I have the network guy reviewing things.

Shawn