It is pretty straight forward to configure SSL Client Certificate Authentication in UAG, just follow the steps in the online guide at <a href="http://technet.microsoft.com/en-us/library/ee861163.aspx">http://technet.microsoft.com/en-us/library/ee861163.aspx</a> and you should be able to run in almost no time except for an issue that occurs whenever your logon name and common name does not match!