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Enable RRAS

I have windows 2008 server that has only one physical NIC.
I am planning to install DHCP server on it and create super scopes for different subnets, I don't have a physical router, I thought I just can enable RRAS on it, but I am not sure with 1 physical NIC if it will work.
Any work around?

Thanks
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jskfan
Asked:
jskfan
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NetAdmin2436Commented:
Well, I know you need at least 2 adapters to configure RRAS (at least that's how it is in Windows 2003) otherwise it gives you an error. A work around for that would be to install a loopback adapter.
http://www.windowsnetworking.com/articles_tutorials/Install-Microsoft-Loopback-adapter-Windows-XP.html

I'm not sure if it will work with 1 physical and 1 loopback adapter for 4 subnets, you can certainly try it though.
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jskfanAuthor Commented:
Can I give the loopback adapter and IP address for instance 10.10.10.10?
if the physical NIC is a Gig Nic, would the loopback also be a Gig or slower?
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NetAdmin2436Commented:
You don't actually use the loopback adapter. It's just added so RRAS see's a second NIC and continues with the configuration. You would have to assign multiple IP addresses to your physical NIC.
http://www.windowsreference.com/windows-2000/how-to-addassign-multiple-ip-address-in-vistaxp20002003/

I'm not even sure this will all work, I'm just giving you i am just giving you some ideas here and you'll have to try them. Typically you would have 4 NIC's.  
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jskfanAuthor Commented:
I know tha you can multiple IPs even if you have one physical nic.
I don't if the IPs you add are in 2 different subnets will be routed by RRAS.
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jskfanAuthor Commented:
any updates??
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jskfanAuthor Commented:
any updates???
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