I searched the forum but couldn’t find anything on this so I hope I’m not repeating with this post.
How do you assign static IP addresses based on username/password authentication? Either via radius or Kerberos 5 ? Users?
i think my dear you did spend your enough time for searching the solution because in just 10 mints i got the solution in cisco website it is briefly describe that how can you assign static IP addresses to VPN Clients, look at here: https://supportforums.cisco.com/document/9261/how-assign-static-ip-addresses-vpn-clients
and further more if you are searching or willing to know about the static or dedicated ip vpn service provider, then here is a brief solution of it, https://www.vpnranks.com/dedicated-ip-vpn/
I think the above mentioned resources are good enough for the solution.