MS Windows ISA 2000 Server requires authorization

[Markus F. Meisinger]

Dear list,

to connect to the internet i have to pass a Microsoft Internet Security and
Acceleration Server 2000.
But this one is configured to authenticate outgoing web requests.
The documentation of ISA 2000 Server says that the browser has to be CERN
compatible.

Konquerior web browser say "unknown authentication process".

Netscape claims to be CERN compatible but still does not work, because the
authentication process
ends up in an endless loop between ISA and Netscape browser.

I use a standard installation of FreeBSD 5.0.

Thanks for your help!

Markus