We are working with a vendor whose incoming firewall will block any and all traffic that is not from a whitelisted IP address.

Is there a way to change the routing type (from dynamic to static) on a VPN site-to-site of AWS?

I have generated certificated using easyrsa and create a aws client vpn and now i have ovpn file but now i want diffeent user certificate and keys generated from different ca .can i able to establish vpn connection or not.