VPC一共3种联网方式，桥接、NAT、内联。 
如果你是家庭ADSL拨号上网，找到网络连接里的ADSL连接，查看属性，然后选高级，再勾选Internet连接共享。VPC网络设置里选择物理网卡就可以，Win98设置为自动获取IP，这就是桥接方式。
 
用路由器上网和建立拨号上网不一样。如果主机通过路由器上网，VPC直接就可以桥接上网。如果是建立的宽带拨号，你就必须设置拨号连接的Internet连接共享后，才能桥接

还有，如果你的主机是断网状态下，VPC是不能和主机通讯的。除非你建立个微软的回环网卡来通讯，此时VPC选Microsoft Lookback Adapter 。建立回环网卡去添加新硬件里的网络是配置里找，选Microsoft Lookback Adapter

If you want to connect a remote tool to the Emulator over the TCP/IP transport and you do not install a network interface card (NIC) on the development workstation, you must install the Microsoft Loopback Adapter.

To install the Microsoft Loopback Adapter in Microsoft Windows XP

To install the Microsoft Loopback Adapter in Microsoft Windows 2000

1. Open Control Panel, choose Add/Remove Hardware, and then choose Next.
2. Choose Add/Troubleshoot a device, and then choose Next.
3. From the Devices list, select Add a new device, and then choose Next.
4. Choose No, I want to select the hardware from a list, and then choose Next.
5. From the Hardware types list, select Network adapters, and then choose Next.
6. From the Manufacturers list, select Microsoft.
7. From the Network Adapter list, select Microsoft Loopback Adapter, and then choose Next.
8. Choose Next, and then choose Finish.

Solution:
1.在主机里添加Microsoft Lookback Adapter
   Control Panel-->Add Hardware-->选择手动从列表中添加-->添加网络设备-->选择Microsoft--Microsoft Lookback Adapter 完成添加新的Lookback网卡

图1 手动从列表中添加

图2 添加网络设备

图3 选择Microsoft Lookback Adapter

特别要注意的是要选中Virtual Machine Network Services 协议

图6. 配置Lookback 网卡IP为10.240.0.2
 
图7. 注意要求选中Virtual Machine Network Services协议

至此配置完毕，Virtual Server的虚机和主机可以在10.240IP段进行内网通信