An organization is planning to extend their data center by connecting their DC with the AWS VPC
using the VPN gateway. The organization is setting up a dynamically routed VPN connection.
Which of the below mentioned answers is not required to setup this configuration?

A.
The type of customer gateway, such as Cisco ASA, Juniper J-Series, Juniper SSG, Yamaha.

B.
Elastic IP ranges that the organization wants to advertise over the VPN connection to the VPC.

C.
Internet-routable IP address (static) of the customer gateway’s external interface.

D.
Border Gateway Protocol (BGP) Autonomous System Number (ASN) of the customer gateway.

Explanation:
The Amazon Virtual Private Cloud (Amazon VPC) allows the user to define a virtual networking
environment in a private, isolated section of the Amazon Web Services (AWS) cloud. The user
has complete control over the virtual networking environment. The organization wants to extend
their network into the cloud and also directly access the internet from their AWS VPC. Thus, the
organization should setup a Virtual Private Cloud (VPC) with a public subnet and a private
subnet, and a virtual private gateway to enable communication with their data center network
over an IPsec VPN tunnel. To setup this configuration the organization needs to use the Amazon
VPC with a VPN connection. The organization network administrator must designate a physical
appliance as a customer gateway and configure it. The organization would need the below
mentioned information to setup this configuration:
The type of customer gateway, such as Cisco ASA, Juniper J-Series, Juniper SSG, Yamaha
Internet-routable IP address (static) of the customer gateway’s external interface Border Gateway
Protocol (BGP) Autonomous System Number (ASN) of the customer gateway, if the organization
is creating a dynamically routed VPN connection. Internal network IP ranges that the user wants
to advertise over the VPN connection to the VPC.

http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html