问题：

[多选]

Certkiller .com has a software evaluation lab. There is a server in the evaluation lab named as CKT. CKT runs Windows Server 2008 and Microsoft Virtual Server 2005 R2. CKT has 200 virtual servers running on an isolated virtual segment to evaluate software. To connect to the internet， it uses physical network interface card. 
Certkiller .com requires every server in the company to access Internet. 
Certkiller .com security policy dictates that the IP address space used by software evaluation lab must not be used by other networks. Similarly， it states the IP address space used by other networks should not be used by the evaluation lab network. As an administrator you find you that the applications tested in the software evaluation lab need to access normal network to connect to the vendors update servers on the internet. You need to configure all virtual servers on the CKT server to access the internet. You also need to comply with company’s security policy. 
Which two actions should you perform to achieve this task（）

A . Trigger the Virtual DHCP server for the external virtual network and run  ipconfig/renew command on each virtual server
B . On CKT’s physical network interface， activate the Internet Connection Sharing （ICS）
C . Use Certkiller .com intranet IP addresses on all virtual servers on CKT.
D . Add and install a Microsoft Loopback Adapter network interface on CKT. Use a new network interface and create a new virtual network.
E . None of the above