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Internet access on VMs

Source: microsoft.public.virtualserver
Sent: 06/11/2009
From: dfosbenner [MCSE]
Message:

I am new to Virtual Server, and I need a little help understanding the issue
of granting internet access to a VM.

I have a physical server running W2K8 SP2 x86. The server is patched and
has full internet access. On this box I've installed two VMs, both W2K8 SP2
x86. The VMs each have an IP address on the same subnet as the physical
machine. For example, the three OS's are 10.0.1.191, .192, .193. All three
are Workgroup members.

It seems to me that the VMs should have internet access just as the physical
box does, provided the gateway & DNS settings are the same as the physical
box. But I can't get internet access going on the VMs.

I've read here and there about the possible need for a loopback adapter and
ICS, but I don't understand why this would be a requirement, or how to
implement it if it is.

Can someone shed some light on this puzzle for me?

--
David Fosbenner
MCSE NT/2000/2003

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Related Messages

Re: Internet access on VMs

Sent: 06/11/2009
From: "Steve Jain [MVP]" <(email address - cut out)>
Message:

On Thu, 11 Jun 2009 07:40:01 -0700, dfosbenner [MCSE]
<(email address - cut out)> wrote:

Can you ping between the VMs and the hosts, VM to VM? This is the
first step.
What is your server connected to a switch, router, etc? Some
corp/enterprise switches have policies for 1 MAC per port.
Check the firewall on the host, it could be blocking the VMs access.

--
Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/

Show quoted text

>I am new to Virtual Server, and I need a little help understanding the issue
>of granting internet access to a VM.
>
>I have a physical server running W2K8 SP2 x86. The server is patched and
>has full internet access. On this box I've installed two VMs, both W2K8 SP2
>x86. The VMs each have an IP address on the same subnet as the physical
>machine. For example, the three OS's are 10.0.1.191, .192, .193. All three
>are Workgroup members.
>
>It seems to me that the VMs should have internet access just as the physical
>box does, provided the gateway & DNS settings are the same as the physical
>box. But I can't get internet access going on the VMs.
>
>I've read here and there about the possible need for a loopback adapter and
>ICS, but I don't understand why this would be a requirement, or how to
>implement it if it is.
>
>Can someone shed some light on this puzzle for me?

Re: Internet access on VMs

Sent: 06/11/2009
From: dfosbenner [MCSE]
Message:

Thank you for the reply. I seem to have it working now. I was playing
around with the Windows Firewall with Advanced Sec'y, but it turns out that
the regular Windows Firewall that was preventing access. Odd. When I have
some time I'll have to dig deeper, but for now I have two VMs now accessing
the internet, so I'll call it success.

--
David Fosbenner
MCSE NT/2000/2003

"Steve Jain [MVP]" wrote:

Show quoted text

> On Thu, 11 Jun 2009 07:40:01 -0700, dfosbenner [MCSE]
> <(email address - cut out)> wrote:
>
> >I am new to Virtual Server, and I need a little help understanding the issue
> >of granting internet access to a VM.
> >
> >I have a physical server running W2K8 SP2 x86. The server is patched and
> >has full internet access. On this box I've installed two VMs, both W2K8 SP2
> >x86. The VMs each have an IP address on the same subnet as the physical
> >machine. For example, the three OS's are 10.0.1.191, .192, .193. All three
> >are Workgroup members.
> >
> >It seems to me that the VMs should have internet access just as the physical
> >box does, provided the gateway & DNS settings are the same as the physical
> >box. But I can't get internet access going on the VMs.
> >
> >I've read here and there about the possible need for a loopback adapter and
> >ICS, but I don't understand why this would be a requirement, or how to
> >implement it if it is.
> >
> >Can someone shed some light on this puzzle for me?
>
> Can you ping between the VMs and the hosts, VM to VM? This is the
> first step.
> What is your server connected to a switch, router, etc? Some
> corp/enterprise switches have policies for 1 MAC per port.
> Check the firewall on the host, it could be blocking the VMs access.
>
> --
> Cheers,
> Steve Jain, Virtual Machine MVP
> http://vpc.essjae.com/
>

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