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Date:      Thu, 10 Oct 2002 13:10:33 -0700
From:      Marc Hunter <hunter@hunter.net>
To:        freebsd-questions@freebsd.org
Subject:   ipfw and natd during internal to internal access ...
Message-ID:  <4.2.0.58.20021010130144.00bc7a10@192.168.0.64>
In-Reply-To: <007001c2708c$b8386070$0650fea9@highcross>

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Hi,

We have just implemented an ipfw and natd firewall and generally it works 
great.  We are using natd for traffic going out and to redirect outside 
traffic on port 80 to a particular webserver.   However, when a machine 
within the network attempts to access the web server through its external 
address (using the domain name for instance) it doesn't work.

Is there some special trick to deal with this?

An example to summarize:

Firewall
  - External IP: 24.70.100.100
  - Internal IP: 192.168.0.64

Webserver
  - IP: 192.168.0.128

User machine
  - IP: 192.168.0.200

We have a domain mapped to 24.70.100.100, and when the web request is 
initiated from outside the network, it all works fine, from inside, it 
fails.  Inside access to the rest of the web works fine (so natd is working 
going out and the redirect_port is working for those coming in).

Any tips?

Thanks!

Marc


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