Have you tried login=username:password (e.g use a fixed user authenticating squid to the ISA proxy) ? Markus BTW I have a beta patch which does authenticate squid to the ISA server using integrated authentication. See squid_kerb_proxy_auth at http://squidkerbauth.cvs.sourceforge.net/squidkerbauth/ "Shekhar Gupta" <shekharsahab14@xxxxxxxxx> wrote in message news:c963fe110707041010t5790b5a1x67368ed387115e0c@xxxxxxxxxxxxxxxxx > 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, > Shekhar >