Vista - Trouble getting Hyper-V Virtual Network to work with second Network Adapter

Windows Server 2008 with Hyper-V installed.
I'm trying to follow the "best practice" of having one network adapter for the "host" and a second
one for the guest virtual machines.

The server has two physical network adapters:
Broadcom NetXtreme Gigabit Ethernet
Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client

I've configured the Broadcom BCM5708C to be the "host" network adapter - that is working fine - it
operates on the physical network just fine.

However, I can not get the virtual machines to communicate with the physical network using the
second network adapter.

Before starting to configure the Virtual Network, in Control Panel, Network Connections, in the
"Networking" tab of the Properties for the other physical adapter (Broadcom NetXtreme Gigabit
Ethernet), all the check boxes are empty.

In the Hyper-V Management Console:
1. click Virtual Network Manager
2. click New Virtual Network
3. select External (default); click Add
4. in Name: key "External"; in Connection Type: select External (default); select Broadcom NetXtreme
Gigabit Ethernet (default); click Apply
5. on the Apply Network Changes box warning about possible network connectivity issues click Yes
6. no error messages so assume the Virtual Network was created successfully
7. in Control Panel, Network, a third "connection" appeared - "Local Area Connection 2"; Status =
Enabled; Device Name=External
8. In Control Panel, Network Connections, in the "Networking" tab of the Properties for the Broadcom
NetXtreme Gigabit Ethernet adapter, there is now a check mark beside Microsoft Virtual Network
Switch Protocol - there are no other check marks
9. in Control Panel, Network Connections, in the "Networking" tab of the Properties for "Local Area
Connection 2", there are no check marks at all
10. Create a virtual machine and install Windows Server 2008 in it; install the "Integration
Services" . In the Virtual Machine "Settings", for Network Adapter, for "Network" select "External"
11. logon to the virtual machine; on the Intital Configuration Tasks panel, click Configure
Networking, which opens Control Panel, Network Connections - the Status remains at "Identifying";
icpconfig command shows
DHCP Enabled Yes
Autoconfiguration Enabled Yes
Autoconfiguration IPv4 Address 169.254.24.83 (Preferred)
Subnet Mask 255.255.0.0
Default Gateway:
NetBIOS over TCP/IP Enabled

12. in Control Panel, Network Connections, right click Local Area Network, select Properties
12.a. click Internet Protocol Version 4 (TCP/IPv4), click Properties
12.b. select the Use the following IP address: radio button
IP Address: 142.31.131.202
Subnet mask: 255.255.255.128
Default Gateway: 142.31.131.129
12.c. key:
Primary DNS server: 142.32.208.196
Secondary DNS server: 142.22.44.132

Note: this is the same as the "host" network adapter except that the IP Address for the "host" is
142.31.131.201. Both physical network adapters are wired to the same switch.

12.d. click OK; click Close
13. in Control Panel, Network Connections, status goes to Unidentified Network; "Connectivity" stays
at "Limited connectivity"

As far as I can tell, this Virtual Machine can not communicate with anything on the network at all.

So, what do I need to do to get this "recommended" network setup to work? I've looked in various
places for documentation, but can not find any details about how to set this up, just that it is a
"best practice".

--
Bruce Sanderson
http://members.shaw.ca/bsanders/
It's perfectly useless to know the right answer to the wrong question.

"Bruce Sanderson" <bsanders@xxxxxx> wrote in message
news:#tb7zNlhJHA.3904@xxxxxxHi Bruce,

That should be all you need to do. There were some problems with the
Broadcomm drivers not working properly with the virtual switch software but
I thought that had been sorted out. You could try disabling TCP offload on
the NIC (as that seemed to be the problem).

It is probably work switching things around and running the "other" NIC
as the connection to the virtual switch to check if it is just something odd
with the driver software.

OK Thanks, Bill. I'll try what you suggest and reply with the result.

--
Bruce Sanderson
http://members.shaw.ca/bsanders/
It's perfectly useless to know the right answer to the wrong question.



"Bill Grant" <not.available@xxxxxx> wrote in message
news:O8qewKphJHA.4868@xxxxxx

I pursued your suggestion re disabling the offloading and that made no
difference. So, pursued your suggestion re switching the NIC roles. In the
process of doing this I discovered that there was no network connectivity
through the NIC although the cable was plugged in and the green lights were
on.

Discussed this with our technician and discovered that the physical switch
port the NIC was connected to was not working, although the green
"connected" light was on (on the switch and on the server) and the traffic
light was flashing.

Connected the wire from the physical NIC to another switch port and now the
Virtual Network is working correctly.

Thank you for confirming that I had understood how to configure the Virtual
Networking correctly and for your suggestions which did lead me to discover
the problem although it had nothing to do with the Virtual Networking
configuration.

I've re-enabled the TCP/IP Offloading settings in the NICs properties and it
is still working correctly. The NIC is a Broadcom NetXtreme Gigabit
Ethernet that is on the server's motherboard.

--
Bruce Sanderson
http://members.shaw.ca/bsanders/
It's perfectly useless to know the right answer to the wrong question.



"Bruce Sanderson" <bsanders@xxxxxx> wrote in message
news:uik4PJvhJHA.996@xxxxxx

The Dell driver for Broadcom BCM5708C NetXtreme II GigE is not working correctly
1. Unistall both NIC from Device Manager
2. Reboot your computer and let Windows 2008 Driver install

it will sove your problem It worked for me

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