Hi , I am trying to configure my squid proxy to forward all the query to my upstream ISA server which is running with INTEGRATED authentication option . The problem starts at squid when i don't have login=PASS option set for squid it ask for the username and password which is good , however if i type the username and password it doesn't take those credentials . and if i have login=PASS option set then it will show a default deny page for ISA as it tried using anonymous account . Client --- > Squid ----> ISA ( with Integrated Authentication ) ----> Internet Please let me know where i am wrong in this or whether this is not possible with squid . Regards, Sudhir