IGEL OS 11.04 IGEL OS Articles Miscellaneous Passthrough Authentication Session Configuration Current: Parallels Client PDF Download PDF Download page Parallels Client. Current page All pages Parallels Client For Parallels Client sessions, passthrough is supported. Kerberos passthrough is not yet supported.Go to Sessions > Parallels Client > Parallels Client Sessions > [session name] > Connection.Enable Use system credentials to use the passthrough authentication. ×