Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

CJ — Tue, 20 Sep 2011 02:03:33 GMT

Will all this work on Windows CE in Microsoft Virtual PC 2007?

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Carlos — Sat, 10 Sep 2011 21:42:01 GMT

Is there any way to change nat type using ics from an android tether app

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

GThomas — Sat, 11 Dec 2010 02:28:44 GMT

I could use some help. I'm training for my MCITP cert and I'm running through the training book(configuring windows server 2008) I downloaded Virtual PC 2007 and installed it on my Win7 box and created my first VM named Server01 and installed Server 2008 standard on it. I ran through the first few exercises with no problems and set up the first VM with the AD DS role, and created the Contoso.com domain. In the VM console I have 2 network adapters configured for my first VM one is my local area connection of my win7 box and second is set to local only. Next I created a second VM called Server02 and installed a 2008 Server core build and I'm trying to do a netdom join to join Server02 to the domain I created on server01 but doesn't seem to work. I know it probably has to do with how I have my 2nd VM network configured. How should I set up my VM's network settings so I can simulate my network? AdvancedEvolution@charter.net Thank you in advance. :)

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Mehul Parekh — Wed, 08 Dec 2010 11:11:58 GMT

I want to share host and guest machine. Following is the detail:

1. Host OS windows 7 Enterprise

2. Guest OS Windows 2003 Enterprise installed in VPC.

3. Microsoft Loopback adapter installed on both Host and Guest machine

Please guide me how do connect/share host-guest machine.

Regards,

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Rob Keiser — Wed, 02 Nov 2005 22:48:14 GMT

Well we tried to do this but did not have any success. The IP address on the external adapter is not a 192.168.x.y but a routable address. Could this be causing a problem?

What we get is the ability to see the host from the guest but not the rest of the internet. Any ideas?

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Norman Diamond — Tue, 11 Oct 2005 02:56:56 GMT

I'll try to help Chris Davidson since I've done more than half of the steps that I think are necessary for this.

Assuming that the real machine is running a Windows Server OS, enable Routing and Remote Access on the real machine to forward packets between the VMs and the real network. Next, when a VM attempts to access a share on some real machine in the domain, there will be a prompt for authentication. The user will have to authenticate as a domain account that has privileges, in the following manner:
Username: MyDomain\SomeDomainUsername
Password: SomeDomainUsername's domain password

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Chris Davidson — Mon, 10 Oct 2005 22:34:50 GMT

Heya VPC guy...I found this post and was hoping that you might be able to provide a suggestion for my scenario...

What I've got is a machine running Virtual Server 2005 on it...with one network adapter and 1 loopback adapater. The machine is unjoined to any domains. There is an virtual network setup to use the loopback adapter so that VM's can get an IP address and talk to each other.

There are 2 VM's running, ones a DC and the other a member server joined to the virtual DC.

The host is capable of getting to domain resources by providing a domain authenticated user's credentials, however the VM's are not.

So my question is what do I need to do in order for the VM's to be able to access network resources, while still remaining isolated?

Thanks. :)

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Norman Diamond — Thu, 06 Oct 2005 04:40:08 GMT

On both Windows XP and 2003 I have changed the IP address of the loopback adapter in network properties. That wasn't a problem. But when I tried enabling Internet Connection Sharing, that forced the loopback adapter's IP address to change to the same as a physical external machine. (Which physical external machine? The one that provides connectivity for viewing Microsoft's web site, activating a guest OS, sending crash dumps to Microsoft, etc.) So I had to give up. In Windows 2003 I could use Routing and Remote Access to set a non-conflicting subnet and get a guest connected, but in Windows XP there's no way.

I think the help for Virtual PC does give most of those steps from beginning to end, even if the help for Virtual Server doesn't.

Meanwhile why did plain old NAT stop working in Virtual PC? From your posting I understand that it was removed from Virtual Server (though I wonder why), but why did it stop working in Virtual PC? When the real machine is running Windows XP there no longer seems to be any way to establish connectivity for a guest.

Change IP if XP ICS

David — Wed, 05 Oct 2005 13:25:31 GMT

I knew the ICS IP:s could change cause I've done it myself a while ago (due to conflict with WAN adresses).
After searching the net I found this page describing how to do it (though there seems to be a bug in defining DHCP-range)
http://www.wown.com/j_helmig/icsadcnf.htm

re: Configuring NAT via using the Microsoft Loopback Adapter and Internet Connection Sharing

Jonathan — Wed, 05 Oct 2005 12:22:17 GMT

1. Well, I managed to do it just by reading the .chm, and I've never even heard of the loopback adapter or setup ICS before. But I may just be more versed in networking than some...

2. I suspected as much.

3. Really? And ICS' DHCP will just distribute addresses from the adapter's subnet? That's cool.