Firewall and NAT in a router...

Discussion in 'Networking Issues' started by SAPo57, Apr 2, 2006.

  1. SAPo57

    SAPo57 Network Guru Member

    Does NAT turn off when I disable my WRT54GS's firewall?

    I want to be able access my WRT router's interace when im connected to my modem or Broadband router.

    (INTERNET)===MODEM===RT41-BU Router===WRT54GS-Router

    Modem's ip=
    RT41-BU ip=
    WRT54GS ip=

    RT41-BU WAN port is a DMZ ip address from the modem
    WRT54GS WAN port is from the RT41-BU router.


    I created my own network for my personal purposes, but maybe I have something misconfigured. Can some one help me with this problem?
  2. RTSAnime

    RTSAnime Network Guru Member

    Either connect the GS to the RT41-BU via a LAN port and disable DHCP on the wrt or change the WRT to a different IP range (IE on its internal network). If you do change to wrt to then to be able to acess the config page from the RT41-BU you will have to enable remote administration.
  3. SAPo57

    SAPo57 Network Guru Member

    Hold up....

    You just said to change the WRT's IP address to

    Wouldn't it be much harder to access its config page since it's now on a different subnet.

    Toxic told be to configure my network like the one in this website

    Each router should be in the same subnet so that they won't conflict with their DHCP ip ranges.
  4. SAPo57

    SAPo57 Network Guru Member

    On the website if you read page 3 it says you have to disable DHCP on the second router, but if you choose an ip address that won't conflict with the router's base or DHCP ip addresses AND can have DHCP use an available range depending which IP you've set to the 2nd router, then you can have DHCP enabled on it.

    If you can clearly understand this, then you can see that there won't be any conflicts when both routers have DHCP enable with the current configuration I've explained.

    My point is that changing the IP addresses or disabling DHCP (before when I've had this network hasn't done anything to fix my problem by accessing the second routers interface or configuration webpage.
  5. RTSAnime

    RTSAnime Network Guru Member

    The WRT has 2 ip addresses. Its external one and its internal one. As per the page you linked you have to change the internal one to and enable remote administration.

    Then when you want to configure it while connected to the other router you would type in
  6. Toxic

    Toxic Administrator Staff Member

    you have used a patch cable from router1 to router2 yes?

    you will need to enable Remote Management on the WRT as your trying to access via the WAN port. and dont forget the :8080 at the end of the WRT54GS's IP address like so:
  7. SAPo57

    SAPo57 Network Guru Member

    FINALLY... I tried both solutions, but only toxic's worked perfect for me. Im not to sure about that external and internal IP thing RTSAnime, although I configured my routers like you said, but it still doesn't work.

    But thanx any way.
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