How do I seperate 2 NIC's on a PC (1 for LAN, 1 for Internet)?

I'm running Windows XP Pro and the computer has two seperate gigabit NIC's. I would like to assign one NIC strictly for LAN use and the other for Internet. Any ideas how to set this up? Or is special software required to do this?
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  1. I'm not exactly sure what your trying to do but here are all the situations you could be going for

    Situation 1
    no internet forwarding to lan

    Sugestions
    cheap
    buy a hub to connect to the lan
    manually assign ips

    slightly more expensive but easier
    plug lan into router ignoring wan port
    router will suplly ips

    Situation 2
    Intenet connection sharing
    just run the network setup wizard and enable ICS
    your computer will assign IPs to the rest of your network through a switch, hub, or crossover cable
    Situation 3
    Network Bridge
    open up network connections highlight the two ethernet cards right click and select bridge
    you have to manually assign ips to the lan side but all computer will have access to your modem or router controlling the internet not just the internet signal. Its also useful in different situations for bridging a wireless connection and still giving complete access to the whole lan.

    example I have a computer receive wireless connection from router then through hub to xbox or another pc both the pc and the xbox have access to shared files all across the network and the pc can configure the router.

    Things to remember you cannot connect connect two computer without a the switch on a router,a normal switch,a hub, or a crossover cable
  2. I'm trying to seperate internet and lan traffic for added security.

    My LAN consists of 5 computers with dual gigabit connections; they are connected to a switch that is connected to a router.
  3. Well then you have two options

    option 1
    Directly connect the internet wire that was in the wan port of the router to lan card 1
    Directly connect lan card 2 to switch on router

    cons
    if your router doesn't have a gigibit switch it's going to be slower
    your exposing your main computer straight to the internet definitely less safe for that computer without a hardware firewall. If that computer gets compromised then all this was useless. You could try it through the wan port then set up a vpn to gain access to your lan (still volunerable if vpn password is compromised from lack of hardware firewall).
    pros
    easy although setting up a vpn can be daunting

    option 2
    connect lan of router to lan card 1
    Connect lan card 2 to switch
    manually assign ips

    pros slightly more secure than option 1 without vpn(still vulnerable if first computer compromised since it will have lan access)
    cons little harder set up

    option 3
    connect lan of router to lan card 1
    buy second router or set up an old computer as a router and plug into lan2 into wan port then connect the routers switch to your switch
    setup a virtual private network for first computer to network with lan
    openvpn is free and secure

    pro
    this is the only real option that provides actual security for your lan since both computers will have hardware firewalls and the lan is only compromised if your vpn password is.
    cons
    A bitch of a set up
    have buy or diy a router

    personnally, I think this is a little excessive as long as you have antivirus up to date and keep adware under control you'll be fine with a normal router set up.
  4. If looking into a vpn I would greatly suggest Team Viewer software for free. Very easy to set up and execute.

    brw02005 said:
    Well then you have two options

    option 1
    Directly connect the internet wire that was in the wan port of the router to lan card 1
    Directly connect lan card 2 to switch on router

    cons
    if your router doesn't have a gigibit switch it's going to be slower
    your exposing your main computer straight to the internet definitely less safe for that computer without a hardware firewall. If that computer gets compromised then all this was useless. You could try it through the wan port then set up a vpn to gain access to your lan (still volunerable if vpn password is compromised from lack of hardware firewall).
    pros
    easy although setting up a vpn can be daunting

    option 2
    connect lan of router to lan card 1
    Connect lan card 2 to switch
    manually assign ips

    pros slightly more secure than option 1 without vpn(still vulnerable if first computer compromised since it will have lan access)
    cons little harder set up

    option 3
    connect lan of router to lan card 1
    buy second router or set up an old computer as a router and plug into lan2 into wan port then connect the routers switch to your switch
    setup a virtual private network for first computer to network with lan
    openvpn is free and secure

    pro
    this is the only real option that provides actual security for your lan since both computers will have hardware firewalls and the lan is only compromised if your vpn password is.
    cons
    A bitch of a set up
    have buy or diy a router

    personnally, I think this is a little excessive as long as you have antivirus up to date and keep adware under control you'll be fine with a normal router set up.
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