Subject: Re: IP-NAT
To: Christopher P. Gill <cpg@scs.howard.edu>
From: David A. Gatwood <dgatwood@mvista.com>
List: port-mac68k
Date: 07/12/1999 14:59:01
On Mon, 12 Jul 1999, Christopher P. Gill wrote:

> On Mon, 12 Jul 1999, Keith Fischer wrote:
> 
> > Why would I run named or gatd?  Isn't my ISP taking care of that?  So I
> > just tell my client computers that the DNS address is the real cable modem
> > ISP address and the NetBSD forwards the packet to the modem since it isn''t
> > destined for a 10.0.2.x LAN computer.  Is that a bad idea?
> 
> Your clients need to actually communicate with a real DNS, which you don't
> need to run yourself.  Telling them that your cable modem is a DNS isn't
> the same thing.  The IP-NAT box is set up to transform the IP addresses on
> packets from your clients to it's own IP address, and then send them on. 
> The gateway, as far as your clients are concerned, is your IP-NAT box -
> that's where their outbound packets will go for forwarding when trying to
> reach any host not on your local network, including your DNS, if you
> aren't running one yourself.  I gather you knew most of this, though...

I thought he meant to use the ISP's DNS address.  Yeah, if it's using the
cable modem's address, that's bound to not work right.  :-)


David