Re: [FW1] IP forwarding on NT

[Earl Robinson <earl_robinson@senet-int.com>]

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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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