Subject: Re: IP-NAT
To: David A. Gatwood <dgatwood@mvista.com>
From: Bill Studenmund <wrstuden@nas.nasa.gov>
List: port-mac68k
Date: 07/12/1999 15:39:31
On Mon, 12 Jul 1999, David A. Gatwood 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
> 
> I vaguely recall, at least with MkLinux as a gateway, that I have to run
> routed on... either the client or the gateway, I forget which, or else I
> don't get anywhere.  It's been a while since I've monkeyed with IP-NAT or
> IP masquerading, though, so I could be remembering wrong.

With NetBSD 1.4, you don't need routed. You just need ipf & ipnat, and a
config file. Oh, and to turn on ip forwarding with the sysctl from the
ipnat man page.

> > 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?
> 
> _should_ work.  It'd be faster if it's cached on a local system than
> behind a cable modem.  Beyond that, though, it should work, AFAIK.

Works for me.

To track down problems, try ftp'ing or running lynx on the gateway
machine.

Take care,

Bill