If the NIC in the host is dedicated to the Internet connection, you
cannot use it to connect to the guest. You will need to install a loopback
adapter in the host machine and connect host and guest through the internal
loopback network. For the guest to access the Internet you will need ICS or
NAT on the host.
This is really the same situation as you would have with two real
machines. If one machine has an Internet connection which you want to share,
you must have two interfaces in the "server" machine - one for the Internet
connection and one for the private LAN. For the private side to connect to
the Internet, the "server" must be running ICS or NAT (or proxy server
software) to allow the private IPs to cross the Internet.
With Virtual Server you don't need any hardware to implement the private
LAN. You can install the Microsoft Loopback Adapter to act as the private
interface on the server. You then set the NIC in the vm guest to use this
network. From then on the setup is the same as for a physical local LAN.
ICS gives the "private" interface an IP of 192.168.0.1 and sets up a
DHCP-style allocator to configure the client machines. With ICS it would
look like this.
Internet
|
cable modem
|
public IP (config from cable DHCP)
host
192.168.0.1 dg blank (loopback adapter)
|
guest
192.168.0.x dg 192.168.0.1 (config from ICS)
The guest machine can access the host and the Internet through its
virtual NIC which is linked to the loopback adapter in the host.
Bill wrote:
> Hello Bill,
>
> The network configuration is:
>
> Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : server
> Primary Dns Suffix . . . . . . . : larson.com
> Node Type . . . . . . . . . . . . : Unknown
> IP Routing Enabled. . . . . . . . : No
> WINS Proxy Enabled. . . . . . . . : No
> DNS Suffix Search List. . . . . . : larson.com
>
> Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network
> Connection DHCP Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> Subnet Mask . . . . . . . . . . . : 255.255.254.0
>
> It's using a Gateway, DHCP Server, and DNS Servers through the cable
> modem. There is a NIC card in the system and the cable modem is the
> only connection to the internet.
>
>
>> What is the network config of the host machine? Is the cable
>> modem its only network connection?
>>
>> If the host does not have a NIC, the guest will need to
>> communicate with the host through the internal loopback adapter
>> network. To get out to the Internet you would need to configure ICS
>> or RRAS/NAT on the host machine (just as you would to allow a real
>> computer to share the Internet connection).
>>
>> Bill wrote:
>>> Hello,
>>>
>>> I'm running xp inside virtual server 2005 r2 and I'm unable to
>>> connect to the host network or even ping the host. The host is a
>>> widows 2003 server which is able to access the internet through a
>>> cable modem. Is there a setting to allow network connectivity with
>>> the virutual server?
|
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