A. Update the PSK (Pre-shared key) in Router 2.
B. Update the A record on the DNS from 2.2.2.2 to 1.1.1.1.
C. Promote deny All to allow All in Firewall 1 and Firewall 2.
D. Change the Address Space on Router 2.
E. Change internal IP Address of Router 1.
F. Reverse the Weight property in the two CNAME records on the DNS.
G. Add the Application Server at on-premises to the Load Balancer.