Wireless & Cisco Clean access agent

Hi all … In my work the wireless network is secured by a program called Cisco Clean access agent ( I am connected to the network & can receive & send bytes but I cant browse every-time I browse I am redirected to download this program) … in Windows I download this .exe file & be able to browse easily … but in Ubuntu or SuSE I can download it but it doesn’t work after installation with Wine so is their a way to override this program … or is their are versions of this program for Linux … any ideas ?? Thanks.