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Thread: Subnet adaptor conflict

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  1. #1
    scottyboy Guest

    Default Subnet adaptor conflict

    I just had to reinstall xp pro and am having a problem with zonealarm now (it worked fine before). I followed the instructions I found here: http://forums.zonealarm.org/zonelabs...ssage.id=53620

    I am running a dual network with dual onboard lan, nvidia and marvel. The problem is when I install zonealarm and enable both adaptors zonealarm freaks out. Instead of adding 2 separate adapters it tries to do both at once on top of each other. I can watch the 2 adapters flashing back and forth in the zones tab. When that happens I lose all connections and it usually causes me to reboot to safe mode to uninstall zonealarm because it locks up windows and I can't disable one of the adaptors again. If I reinstall it and only enable one it works fine until the other is enabled.
    Any ideas?

    Operating System:Windows XP Pro
    Software Version:7.0
    Product Name:ZoneAlarm (Free)

  2. #2
    zaswing Guest

    Default Re: Subnet adaptor conflict

    I do not know what a dual network is, sorry.

    Perhaps a solution is in two versions of the settings files, one for one LAN, the other for the Other LAN. just save the setting with clear designation of which LAN in the filename you can reload. Can you try and report back. It could well be that home version of ZA is simply not anticipating you being on two networks at the same time. But I am just wild guessing

    There was a thread recently that had a somewhat, not the same, similar question. Perhaps something will be useful there
    http://forums.zonealarm.com/zonelabs...ssage.id=49396

  3. #3
    scottyboy Guest

    Default Re: Subnet adaptor conflict

    By dual network I mean I have 2 separate lan connections, one to a computer and the other to a router. The router is internet only. Before I was forced to reinstall windows both the nvidia lan and the marvell lan were both recognized as subnet adapters. The other computer has 2 lan cards(not onboard) and both are recognized by zonealarm just fine. Each has a different IP address.

    In case you're curious, I run the dual lan because the direct connection is a 10/100/1000. I move a lot of files between the 2 computers.

  4. #4
    zaswing Guest

    Default Re: Subnet adaptor conflict - GURU help needed!

    Thanks for explaining. This is well beyond my skills, but if you're lucky, one of the GURUs will help.

    Just for my education, how are these two setup physically - a rj45 cable to the router and crossover to another computer? A bridge of networks through the router? Some other way?

  5. #5
    Join Date
    Dec 2005
    Posts
    9,057

    Default Re: Subnet adaptor conflict - GURU help needed!

    More than likely each card has got the same IP address. The two same IP are driving the firewall crazy.

    Open the network connections are make the adapters IP's are not identical. Change one of them.But be aware that the PC will no longer be a pass through and the PC will mow be a gateway instead. Set the ZA to be a gateway, and use it as a particular IP. Set the IPs of the other PCs on the LAN as Trusted in the Zones. Make sure the dhcp and the dns server IP(s) are set as Trusted in the Zones of the Firewall.

    Oldsod
    Best regards.
    oldsod

  6. #6
    scottyboy Guest

    Default Re: Subnet adaptor conflict - GURU help needed!

    I'm not sure I understand. I know that the IPs are not the same. I am connected directly to the router via a cat6 cable on a router assigned address of 192.168.1.101. The other lan is also directly connected to the other computer via another cat6 with an address of 192.168.2.2
    I don't understand how changing one of them would make it a gateway. This should not be a conflict since they are already different IPs. The rapid flash of the subnet adaptors in zonealarm even shows this. I did try to setup the second adapter as a subnet manually, but it still tried to force the dual connection. I can't setup the trusted zones since the conflict usually crashes my computer.

  7. #7
    Join Date
    Dec 2005
    Posts
    9,057

    Default Re: Subnet adaptor conflict - GURU help needed!

    Some PCs come with dual ethernet on the motherboard and some people just add an extra ethernet card to the motherboard (and add the new drivers). That is a dual.

    Oldsod
    Best regards.
    oldsod

  8. #8
    Join Date
    Dec 2005
    Posts
    9,057

    Default Re: Subnet adaptor conflict - GURU help needed!

    Stick this in a laptop and you have the same:

    http://www.tigerdirect.ca/applicatio...8770&CatId=200

    Or by USB instead:


    http://www.tigerdirect.ca/applicatio...5619&CatId=200

    Or the usual desktop method:

    [add an another extar card]

    http://www.tigerdirect.ca/applicatio...1655&CatId=200


    [notice this motherboard has two RJ45 ports and is called dual * LAN]

    http://www.tigerdirect.ca/applicatio...&Sku=E145-2016

    Oldsod
    Best regards.
    oldsod

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