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Dual NIC - One for Internet, One for LAN

post #1 of 8
Thread Starter 
Hello all. I have a backup machine that I currently have hooked up to a DSL connection which is used only by that computer. It's hooked up to a router with a gateway of 192.168.2.1. I only use that computer for downloading and watching some Hulu. I would like that machine to connect to my main LAN that all of my other computers are hooked up to so that it can access my NAS and share files to other computers. That gateway is 10.10.10.1.

I have nic cards lying around, with extra cables and both routers within arms length of each other so installing both NIC's won't be a problem. The problem I want to make sure can be solved is I cannot have this computer downloading anything through the 10.10.10.1 router due to the bandwidth cap on my cable connection.

Attached is a pathetic drawing of what I want to do.
post #2 of 8
it should work however your gonna have to do alot of configuring inside windows to allow your computer 1 to connect to the right network for internet
post #3 of 8
Thread Starter 
Can you give me a direction on the configuration needed? It's running XP Pro.
post #4 of 8
Quote:
Originally Posted by Pedgette;12435047 
Hello all. I have a backup machine that I currently have hooked up to a DSL connection which is used only by that computer. It's hooked up to a router with a gateway of 192.168.2.1. I only use that computer for downloading and watching some Hulu. I would like that machine to connect to my main LAN that all of my other computers are hooked up to so that it can access my NAS and share files to other computers. That gateway is 10.10.10.1.

I have nic cards lying around, with extra cables and both routers within arms length of each other so installing both NIC's won't be a problem. The problem I want to make sure can be solved is I cannot have this computer downloading anything through the 10.10.10.1 router due to the bandwidth cap on my cable connection.

Attached is a pathetic drawing of what I want to do.

I'm not sure I understand the goal of what you're trying to do--why do you have to worry about the computer downloading things through your internet connection if you're not initiating downloads? You can set up the NAS and the computer on the same router--accessing the NAS through your computer won't have any effect on your internet bandwidth usage since it's all on your local area network--nothing external.

Unless you're accessing your NAS through your internet connection? Which would be weird if it's already on your LAN. I don't understand why that would be the case though.

editNevermind--I didn't understand the situation before--didn't realize you had TWO internet connections at first. Sorry. I think there is a simple fix for you--gimme a bit and I'll respond.
Edited by guyladouche - 2/18/11 at 10:56am
    
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post #5 of 8
Thread Starter 
I have computer1 as shown in the diagram as a download computer. It's sucking up a lot of bandwidth which is why I want it to only download through router 1. With the downloads I would like to be able to put them on my NAS or have them as shares which can be accessible by all computers hooked up to router 2.
post #6 of 8
Would it be easier to have the two routers connected via ethernet to each other? Make the download router (192.168.2.1) have DHCP turned off. Then manually assign a static IP address on the download computer (i.e. 192.168.2.100).

Make a network share. The computers cannot see each other in Network Neighborhood (i.e. \\User-Share), but they can access each other's shares through IP address (i.e. 192.168.2.100).

I don't believe the download computer would use the other router's internet since it is effectively double NAT'ed.
Edited by Riou - 2/18/11 at 11:54am
post #7 of 8
Use the internet connection sharing feature of Windows.
This will implement NAT for you.

Also, keep in mind that your PC would be the one with the 10.0.0.1, or whatever LAN default gateway address you need. ICS should also be able to provide DHCP so you could just use a switch, or a crossover cable from the PC to the NAS, depending on what hardware you have available and what kind of expandability you require.
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post #8 of 8
on the lan side give it a static IP and don't set a default gateway.

Alternatively you can set the metric on both connections, it should use the lower but I have a friend who claims that windows doesn't listen.
    
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