I have a problem with VPN SSO in NAC Inband VGW. All is configured but the CAA ask for username and password. It's necessary to use digital certificate in VPN?
VPN Concentrator: ASA
Accounting Server: ACS
Mapping: ASA <> ACS
In addition to the CCA request User and password, it is opening all the time after login.
Not necessary to use certificates for VPN authentication. Please post your network diagram with VLAN, IP information.