I have an infrastructure with two physical locations which we are connecting via a Site-to-Site VPN. Only one side has a static IP from the ISP whilst the other site does not as the ISP there does not offer static IP services. Long story short, we do not own the line at SiteB so cannot switch providers etc.
SiteA (Static IP) and SiteB (Dynamic IP).
Our issue is not so much about the VPN setup but we have services running at SiteB which requires the IP address to be Whitelisted for security reasons. This is a long shot but are there any methods to setup SiteB's network so that any outbound connection will report SiteA's IP address?
I've seen some home Client-Server VPN solutions where client IP can report the server's IP address. Not sure how we can approach this at the "Business/Enterprise" level and if Client-Server VPN setup would solve our problem or any Site-to-Site VPN solution to achieve the same?
TIA