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ANS-C01: Configuring AWS VPN to On-Premises Network with Dynamic IP

Learn how to establish a VPN from AWS to an on-premises network with a dynamic IP address using IKEv2 and private certificates.

Table of Contents

Question

A company has an AWS environment that includes multiple VPCs that are connected by a transit gateway. The company has decided to use AWS Site-to-Site VPN to establish connectivity between its on-premises network and its AWS environment.

The company does not have a static public IP address for its on-premises network. A network engineer must implement a solution to initiate the VPN connection on the AWS side of the connection for traffic from the AWS environment to the on-premises network.

Which combination of steps should the network engineer take to establish VPN connectivity between the transit gateway and the on-premises network? (Choose three.)

A. Configure the Site-to-Site VPN tunnel options to use Internet Key Exchange version 1 (IKEv1).
B. Configure the Site-to-Site VPN tunnel options to use Internet Key Exchange version 2 (IKEv2).
C. Use a private certificate authority (CA) from AWS Private Certificate Authority to create a certificate.
D. Use a public certificate authority (CA) from AWS Private Certificate Authority to create a certificate.
E. Create a customer gateway. Specify the current dynamic IP address of the customer gateway device’s external interface.
F. Create a customer gateway without specifying the IP address of the customer gateway device.

Answer

B. Configure the Site-to-Site VPN tunnel options to use Internet Key Exchange version 2 (IKEv2).
C. Use a private certificate authority (CA) from AWS Private Certificate Authority to create a certificate.
F. Create a customer gateway without specifying the IP address of the customer gateway device.

Explanation

Together, this allows setting up the VPN connection from the AWS side without needing the dynamic on-prem IP address. IKEv2 supports that traffic flow initiation. The ACM private CA provides a certificate and the customer gateway can be configured without an IP specified.

AWS Certified Advanced Networking – Specialty ANS-C01 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the AWS Certified Advanced Networking – Specialty ANS-C01 exam and earn AWS Certified Advanced Networking – Specialty ANS-C01 certification.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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