[NTLUG:Discuss] Punch through firewall

[clyde swann]

i think you alls comments have gotten me unstuck.  even though all examples 
showed the inside ether card and the localnet addressed with  private 
addresses, i was intent on addressing mine with public ip addresses.  
without knowing i assumed this would be necessary to avoid masquradeing.

what i'm understanding here is that i must use private addresses for the 
inside ether card in the firewall and for the localnet.  but since the 
server is known from the net with a public address this is translated at the 
firewall/bridge to the local address.  if this is the case its my 
understanding i also need to configure my adsl modem's local ip address to 
be on the same net or vice/versa.

i think i'll give this all a try now.


>From: Bobby Wrenn <bobby at wrennest.com>
>Reply-To: discuss at ntlug.org
>To: discuss at ntlug.org
>Subject: Re: [NTLUG:Discuss] Punch through firewall
>Date: Thu, 02 Mar 2000 15:28:36 -0600
>
>Check the NTLUG archives. There have been two fairly complete
>discussions of this topic recently.
>
>If you would like you may email me directly. I am using a setup much
>like what you describe.
>
>Bobby
>
> > Bob Byron wrote:
> >
> > I am using Redhat 6.1 running an ipchains firewall.
> >
> > Internet ===|eth0 -- LINUX SYSTEM -- eth1|=== local network
> > The local network has 168.192.1.X addresses.
> > I have a machine behind a firewall that I want to access from the
> > interenet.  How do I create a bridge through the firewall to that one
> > machine?  Let's assume I have the domain range of 200.200.200.200
> > through 200.200.200.205, and eth0 had the address of 200.200.200.200.
> > I want to use the address 200.200.200.201 to address the machine
> > behind the firewall, how would I go about that?  Ideally I want the
> > address
> > 200.200.200.201 to be translated to 192.168.1.200 (the address of the
> > local machine.
> >
> > Thank You,
> > Bob Byron
> > RAD Systems, Inc.
> > www.radit.com
> > (972)516-4256
>
>--
>This tagline is identical to the one you are reading.
>
>_______________________________________________
>http://ntlug.org/mailman/listinfo/discuss

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