A Company Needs to Set Up a VPN Between AWS

Multiple Choice

A company needs to set up a VPN between AWS VPC and its on-premises network. A team creates a VPN connection in the AWS Management Console, downloads the configuration file, and installs it on the on-premises router. The tunnel is not coming up because of firewall restrictions on the router. Which two network traffic options should you allow through the firewall? (Choose two.)

A) UDP port 500
B) IP protocol 50
C) IP protocol 5
D) TCP port 50
E) TCP port 500