You can set up a Firewall anyway. Even with public Ip's. If you do this,
make a DMZ on the second interface and put the mailserver in there. give it
a privat IP and do NAT to the public IP on the Firewall. So, it is
accessible from external and internal. 2. put a router into the lan and
create another subnet with privat IP's. Here you can put the computers in
one after another.
Bernhard Fuchs
Junior System-Engineer
IT-Sicherheit
ITELLIUM
Systems & Services GmbH
Fürther Straße 205
90429 Nürnberg
Tel.: +49-911-14-27321
Fax: +49-911-14-22016
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--- Begin Message ---
Hello ,
I have a little problem in securing a network. It's all based on
public IP's (so basicly each computer may be a server of any
kind...), and there is a mail server in the LAN too. My problem is,
that I would like to switch to private IP's and put it all behind a
firewall. There is no possibility for me to do it during one day, so
I have to do it slowly, computer after computer. During that time,
the mail server needs to be accessed both by the "new" IP's and the
old ones. It's a Windows NT4.0 with Exchange 5.5 on it. How can I do
that, without any problems? Is there any way I could assign two IP
numbers to the mailserver (one public IP and one private IP)? If any
questions, then I'm waiting.
--
Best regards,
MuchaR
mailto:[EMAIL PROTECTED]
--- End Message ---
