Sean Witham wrote:
> > You have forgot IPNAT address translation. The 192.168.* networks are
> > never routed by ordinary routers (like the 10.* network and the
> > 172.something.* network).
> > 

> What I found confusing about this statement was its reference to
> the requirement to use NAT. I thought such networks would route
> fine unless you want to connect them to the internet and then you
> would need to use NAT on the boundry router to the Internet.

I guess I wasn't clear enough.  Yes, those nets route just fine.
The backbone routers are explicitly configured to not route these nets.

-- 
Christoph Badura
Verlag O'Reilly