I need to setup a IPSec VPN between my server with a public IP (the server is a part of family of servers with internal network 10.10.10.* and the other side of VPN is based within MS Azure (behind NAT). The second server also has a public IP (however natted) and is part of 10.0.0.* LAN. I need to be able communicate from one network to the other.
I will provide an access to both the severs with pre-installed Centos. The first site will eventually need to be cleaned a bit after previous tests (there is already installed StrongSwan) , the MS server will be fresh installation.