We are moving all our servers from our data center to AWS. I gather that we will need a Site to Site VPN from our head office to AWS to access the servers without public IPs but it's been a while since I touched networks
The problem is that we have setup our AWS VPC with the same subnet as our current data center so we will need some form of NATing applied (at least while we are still connected to our current DC).
Would we leverage an AWS VPN feature or will it be easier to deploy a virtual VPN appliance (such as an ASA)?
Would we source NAT in AWS to a public IP?
So to summarize:
Head office IP range = 172.16.0.0/22 Datacenter IP range = 192.168.4.0/24 AWS IP range = 192.168.4.0/24