Does the DMZ mode forward ports or assigns the WAN address?

Discussion in 'Sveasoft Firmware' started by guille, Dec 26, 2004.

  1. guille

    guille Network Guru Member

    I am planning to get a wrt54gs router because of all the features one can get with these firmware updates, but I have a question about the DMZ mode.
    Does it work like a bridge? i.e. will the machine connected to the dmz port receive the WAN ip address (like the 2Wire Wireless Routers do), or will it assign a static private address and then forward all ports to it?
    I like the way 2Wire handles it since the computer conected to the DMZ is really on its own. I have never used a DMZ with pure port forwarding, and am afraid some P2P clients, and other networking software might require special setups (which I want to avoid).
  2. Morpheus

    Morpheus Network Guru Member

    This is from the more info on the WRT54G if it helps you?

    The DMZ hosting feature allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port Forwarding feature is more secure because it only opens the ports you want to have opened, while DMZ hosting opens all the ports of one computer, exposing the computer so the Internet can see it.

    Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function.

    1. To expose one PC, select Enable.

    2. Enter the computer's IP address in the DMZ Host IP Address field.

    3. Click the Save Settings button.

    Check all the values and click Save Settings to save your settings. Click Cancel Settings to cancel your unsaved changes.
  3. guille

    guille Network Guru Member

    thanks for the info, but I didnt quite understand it,
    sorry about that.
    If i choose the dmz hosting feature....when on my
    computer I type IPCONFIG, will I see a static private
    address or the public address my dsl provider assigned to me?
  4. Morpheus

    Morpheus Network Guru Member

    static private address, is how it looks to me.
  5. guille

    guille Network Guru Member

    thanks again....that cleared it up....not what I wanted to
    hear though. A couple of programs I use embed the
    machines IP address in the setup packets and because
    of that cant work behind a nat (they would embed
    the 192.168.x.x number instead of the public one)
    which causes the other machine to have no way of contacting
    thanks, I guess I have to look at the 2Wire solution again.
  6. Disman_ca

    Disman_ca Super Moderator Staff Member Member

    If you want to ensure you have the same IP then set the address in the static DHCP IP list on the router administration page. Example: 00:09:A4:E6:E5:67 DMZ_PC
  7. guille

    guille Network Guru Member

    no, i dont care if its the same DHCPd address....i care about it being a public ip address instead of the private one.
    But thanks for the tip though..its good to know for other uses.
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