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Configuring a DMZ

Posted on 2004-11-02
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Last Modified: 2010-04-09
Helloo all !

I need to configure a DMZ with a Zywall 35.

I have a public IP 212.xxx.xx.xx.

My LAN is now with Private IP in Class A (10.10.1.1 and 255.0.0.0)

I want to put a server (10.10.1.7) in the DMZ but I don't understand how to configure my firewall ?

I need to do a NAT it seems ! Perhaps put this server on an other network like 10.10.2.7 ?

What about the subnet ?

Thanks a lot

Gaël
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Question by:s2000_com
    3 Comments
     
    LVL 9

    Expert Comment

    by:TannerMan
    It needs to be a different subnet. your mask of 255.0.0.0 means everything 10.x.x.x is on the same network.
    Setup your DMZ as something like 172.16.1.x or 192.168.1.x utilizing a 255.255.255.0 mask
    As far as the config of Zywall, I can't help. Wish you luck with it.
    0
     

    Author Comment

    by:s2000_com
    Thanks TannerMan !

    I have only one public IP.

    If I put the webserver and the exchange front-end serveur in the DMZ, how many public IP I need ?

    Thanks
    0
     
    LVL 9

    Accepted Solution

    by:
    I am not a Zywall guru, but you need only ONE external IP address. Then, inside of Zywall you would do port mapping like.........

    port 80/443 goes to 172.168.16.2 (web server)
    ports 25/110 goes to 172.16.3 (exchange server)

    and so on.....
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