Re: [FW1] IP forwarding on NT

[Bob Brandt <bbbrandt@mmm.com>]

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RFC1918 is correct but the masks on those networks are much broader.  They are:

    10.0.0.0        -    (10/8 prefix)
     172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
     192.168.0.0     -   192.168.255.255 (192.168/16 prefix)

Earl Robinson wrote:

> Coelho wrote:
> >
> > At 10:40 05/11/99 -0500, Earl Robinson wrote:
> > >My first guess is that you're internal network has ron-routable (RFC
> > >1918) ip addressing. You would neet to use NAT here, but without FW-1
> > >installed the router drops those
> > +++ How can I get info about this subject? I think I should study about this.
>
> take a look at  -  http://www.isi.edu/in-notes/rfc1918.txt
> summary:
> the following network address spaces are for use on networks not
> connected to the internet, or on networks that have a router using nat
> to rewite their aaddress to valid addresses.
>
> 10.0.0.0/8     ( mask 255.0.0.0     )
> 172.16.0.0/16  ( mask 255.255.0.0   )
> 192.168.0.0/24 ( mask 255.255.255.0 )
>
> any packet originating from these networks will (should) not be routed
> to the internet. Compliant ISP (all of them) have configured their
> routers to drop these packets.
> -earl
>
> >
> > >My second guess is that the router does not actually know the route to
> > >your internal network, or because of your subnetting, does not know it
> > >correctly.
> > +++ It's correct.
> >
> > >My third guess is that the router does not actually know the route to
> > >your internal netowrk, check this again. It's important ;-)
> > +++ :)
> >
> > >My fourth guess is that you should give up and run away to tibet to
> > >become a monk, living a life of serenity and solitude, without all the
> > >hassles of internetwork routing.
> > +++ I think I like stressing life and I would like to stay here for a
> > while, I mean some years! :)
> >
> > +++ I have installed fw-1 and now it's routing TCP/IP packets... well, what
> > should I know about yout first guess...
> >
> > +++ Thanx a lot! :)
> >
> > André Luiz
>
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