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Server with 2 NICS

Posted on 2014-03-05
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Last Modified: 2014-03-15
I have 2 nics in a Windows Server 2008 R2. I want to configure them for 2 subnets to distribute the load.
NIC1:      IP      192.168.1.1
subnet            255.255.255.0
Gateway            192.168.1.254

NIC2:      IP      192.168.2.1
subnet            255.255.255.0
Gateway            blank

Subnet 1 has a sonicwall router that connects to the internet.
I want to be able to route traffic through the server to the internet, and to manage devices on both
subnets from either subnet.

Is this possible? And if so, how do I do it?
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Question by:Steven Black
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Expert Comment

by:Jason Ryberg
ID: 39907985
If I'm understanding you correctly, you want to create load balancing from a single router to two separate NICs on your server.  It's really not a simple process, and is illustrated here:

http://blogs.technet.com/b/josebda/archive/2010/09/03/using-the-multiple-nics-of-your-file-server-running-windows-server-2008-and-2008-r2.aspx

Also, I'm guessing your router only has 1 port for internet connectivity?  Without some networking equipment between your server and router, you're only going to be able to plug-in one of those NICs into the "internet."

manage devices on both subnets from either subnet

The purpose of separate subnets is ... network separation, so I'm not sure your concept would be considered a best practice.

Hopefully this sheds some light on your situation. :)
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Author Comment

by:Steven Black
ID: 39913482
The problem is that I have a client with over 300 computers. They have 1 file server, but it is used only very lightly for minor file storage, and printing. I would like to split them up into several subnets. Would a level 3 switch be a better solution?
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Expert Comment

by:Jason Ryberg
ID: 39913495
Are you having throughput issues?  What speed is the network?  100Mb, 1Gb, or 10Gb?  Unless you're reaching your throughput capacity on the NIC, there's no point in splitting up traffic between two NICs going to the same server, since both NICs are going to use the same compute resources.
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Accepted Solution

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Steven Black earned 0 total points
ID: 39913557
The network is a combination of 100Mb and 1Gb segments. The network is split up between several building with fiber connections between them. This is a small school system where all the building are right next to each other. They only have one internet connection. When spring comes, they have all the national testing that is done online now. So, I am trying to minimize congestion on the main cable segments that connect the buildings.
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Author Closing Comment

by:Steven Black
ID: 39931092
I realize now that  a better solution would be a true router or level 3 switch.
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